“Simplify the following using the properties of exponents”

A). (3x^-3y^5)^4

B). 5x^0

Simplify The Following Using The Properties Of ExponentsA). (3x^-3y^5)^4B). 5x^0

Answers

Answer 1

Answer:

[tex]A)81x^{-12}y^{20}\\\\B)5\\\\C) x^\frac{2}{3}[/tex]

Step-by-step explanation:

[tex]A) (3x^{-3}y^5)^4=(3)^4 \,\cdot\, (x^{-3})^4\,\cdot\,(y^5)^4=81x^{-12}y^{20}\\\\B) 5x^0=5(1)=5\\\\C) \frac{x^{\frac{5}{6} }}{x^{\frac{1}{6} }} =x^{\frac{5}{6} -\frac{1}{6} }=x^{\frac{5-1}{6} }=x^{\frac{4}{6} }=x^\frac{2}{3}[/tex]


Related Questions

Convert the following number to Mayan notation. Show your calculations used to get your answers.

Answers

135 in Mayan notation is represented by one dot over four bars, followed by one dot over three bars, and then one dot over five dots.

To convert 135 to Mayan notation, we repeatedly divide by 20 and use the remainders to determine the number of dots and bars in each position. First, we divide 135 by 20 to get a quotient of 6 with a remainder of 15. The remainder of 15 corresponds to 1 dot over 5 dots and 2 bars (10 + 5).

Next, we divide 6 by 20 to get a quotient of 0 with a remainder of 6. The remainder of 6 corresponds to 1 dot over 3 bars (15). Finally, we have a quotient of 0 with a remainder of 6, which corresponds to 1 dot over 4 bars (20).

Putting these together, we get the Mayan representation of 135 as one dot over four bars, followed by one dot over three bars, and then one dot over five dots.

Complete question:

Convert the following numbers to Mayan notation. Show your calculations used to get your answers. 135?

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Kristin had some paper with which to
make note cards. On her way to her room
she found seven more pieces to use. In
her room she cut each piece of paper in
half. When she was done she had 22
half-pieces of paper. With how many
sheets of paper did she start

Answers

The 22 half-pieces Kristin had from cutting the sheets she started with and the 7 pieces she found, indicates, that the solution to the word problem is that the number of sheets of paper Kristin started with are;

4 sheets of paper

What is a word problem?

A word problem is a mathematical question in which the scenario of the question is described using verbal terms, or complete sentences, rather than mathematical symbols or expressions, but which are solved using mathematical calculations.

Let x represent the initial number of paper Kristin had.

The extra number of papers Kristin found = Seven more pieces

The size in which Kristin cut each piece of paper = In half

The number of pieces she had after cutting the papers = 22 half-pieces

Therefore, the following equation can be used to find the number of sheets of paper, x, she started with;

2 × (x + 7) = 22

2 × (x + 7)/2 = 22 ÷ 2 = 11

x + 7 = 11

x = 11 - 7 = 4

The number of sheets of paper Kristin started with, x = 4 sheets of paper

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A committee is organizing a music festival in Jefferson County. The amount of time that the
venue has been reserved for determines the number of bands that will be able to play at the
festival.
t = the amount of time that the venue has been reserved for
b = the number of bands that will be able to play

Answers

The dependent and independent variables are b and t respectively.


What are variables?

A variable is a mathematical symbol, which do not have any fixed value, it can be a function, which changed according to the property given.

Given that, a committee is organizing a music festival in Jefferson County,

The time which reserved by venue, gives the number of band that will play at there,

We need to determine the dependent and independent variables,

Dependent variable :-

Dependent variable is a kind of variable which depends on the factors given, and do not change by its own.

Independent variables :-

The independent variable in the given study is the cause by which the dependent variable works, it does not manipulate by any other variable given.

Here,

The number of bands depends upon the amount of the time that the venue has been reserved for.

Therefore, the number of band is a dependent variable.

Hence, the dependent and independent variables are b and t respectively.

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A tin can has dimensions 2m ×1.5m×1m high. How many litres of kerosene oil can it hold?

Answers

Answer:

3000 liters

Step-by-step explanation:

To calculate the volume of the tin can, we can multiply its dimensions:

Volume = 2m × 1.5m × 1m = 3 cubic meters

Since a liter is equivalent to 0.001 cubic meters, we can convert the volume of the tin can to liters:

Volume (in liters) = 3 cubic meters × 1000 liters/cubic meter = 3000 liters

Therefore, the tin can can hold 3000 liters of kerosene oil.

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The terminal ray of an angle with measure of 120 degrees intersect a unit circle at -1/2, square root of 3 /2. Find the EXACT VALUES for the sine and cosine of the given angle.

Answers

The Exact values for the sine and cosine of the given angles are : sin(120°) = √3/2, cos(120°) = -1/2

Given that the terminal ray of an angle with measure of 120 degrees intersects a unit circle at the point (-1/2, √3/2), we can use the definition of sine and cosine to find the exact values of these trigonometric functions for the given angle.

The sine of an angle is defined as the y-coordinate of the point on the unit circle that the terminal ray of that angle intersects. So, for this angle, the sine is:

sin(120°) = √3/2

The cosine of an angle is defined as the x-coordinate of the point on the unit circle that the terminal ray of that angle intersects. So, for this angle, the cosine is:

cos(120°) = -1/2

So, the exact values for the sine and cosine of the angle with measure of 120 degrees are:

sin(120°) = √3/2

cos(120°) = -1/2

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(x - y) (x² - 2xy + y²)

Answers

On expanding the expression, we get -

{x³ - 2x²y + xy² - x²y + 2xy² - y³}

What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given is the expression as -

(x - y) (x² - 2xy + y²)

The given expression is -

(x - y) (x² - 2xy + y²)

x {x² - 2xy + y²} - y {x² - 2xy + y²}

x³ - 2x²y + xy² - x²y + 2xy² - y³

Therefore, on expanding the expression, we get -

{x³ - 2x²y + xy² - x²y + 2xy² - y³}

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Suppose that two electronic components in the guidance system for a missile operate independently and that each has a length of life governed by the exponential distribution with mean 7 (with measurements in hundreds of hours).
(a)
Find the probability density function for the average length of life of the two components.
fU(u) =17e-u7, u ≥ 0,0 . , elsewhere

Answers

The probability density function for the average length of life of the two components is fU(u) = (1/7)[tex]e^{(-u/7)}[/tex], u ≥ 0

The length of life of each component is governed by an exponential distribution with a mean of 7, which means that the probability density function for the length of life of each component is given by:

fX(x) = (1/7)[tex]e^{(-x/7)}[/tex], x ≥ 0

The average length of life of the two components is given by:

U = (X1 + X2)/2

where X1 and X2 are the lengths of life of the two components.

To find the probability density function for U, we can use the convolution formula:

fU(u) = ∫fX(x)fX(2u-x)dx

where the limits of integration are from 0 to u if u ≤ 7, and from u-7 to 7 if u > 7.

Plugging in the expressions for fX(x) and fX(2u-x), we get:

fU(u) = ∫(1/7)[tex]e^{(-x/7)}[/tex](1/7)[tex]e^{-(2u-x/7)}[/tex]dx

= (1/49)∫[tex]e^{-(2u-2x/7)}[/tex]dx

= (1/49)∫[tex]e^{(-t/7)}[/tex]dt (where t = 2u - 2x)

= (1/49)(-7[tex]e^{(-x/7)}[/tex])|0 to 2u

= (1/7)[tex]e^{(-u/7)}[/tex], u ≥ 0

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what is equivalant to - 2 ( -6x + 3y - 1)?​

Answers

Based on the given option, the correct answer would be; C. 2x - 3y = 6 and 2x + y = -6

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

A mathematical equation is a statement with two equal sides and an equal sign in between. An equation is, for instance, 4 + 6 = 10. Both 4 + 6 and 10 can be seen on the left and right sides of the equal sign, respectively.

here, we have,

We are given the system of equations as;

2/3x - y = 2

x + 1/2 y = -3

Here multiply by 3 on both sides;

2x - 3y = 6

Now similarly;

x + 1/2 y = -3

2x + y = -6

The result would be C. 2x - 3y = 6 and 2x + y = -6

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If one of the 98 test subjects is randomly selected, find the probability that the subject had a positive test result GIVEN that the subject actually lied. O 0.962 O 0.654 O 0.784 O 0.456

Answers

The probability of a positive test result given that the subject actually lied is 0.962

In simple terms, probability is the measure of the likelihood of an event occurring. In this question, we are asked to find the probability of a positive test result given that the subject lied.

Let's break down the question and use the formula for conditional probability. Conditional probability is the probability of an event occurring, given that another event has already occurred.

P(A|B) = P(A and B) / P(B)

In this case, A represents the event of a positive test result, and B represents the event of the subject lying.

From the question, we know that 2% of the subjects lie, and 90% of those who lie test positive. This means that out of the 98 subjects, 2% or 1.96 subjects lied. And out of those 1.97 subjects, 90% or 1.78 subjects tested positive.

So, the probability of a positive test result given that the subject lied is

=> P(A|B) = 1.78/1.97 = 0.962.

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Complete Question:

If one of the 98 test subjects is randomly selected, find the probability that the subject had a positive test result GIVEN

POSITIVE TEST RESULT      13            40

NEGATIVE TEST RESULT    34            11

that the subject actually lied.

A 0.962

B 0.654

C 0.784

D 0.456

Consider the following graph.
Determine whether the curve is the graph of a function of x.
Yes, it is a function.
No, it is not a function.
If it is, state the domain and range of the function. (Enter your answers using interval notation. If it is not a function, enter NAF in all blanks.)
domain

range

Answers

Answer: No, it's not a function.

Reason: It fails the vertical line test. It is possible to pass a single vertical line through multiple points on this blue graph.

For instance, we can have a vertical line through x = 1. This vertical line intersects infinitely many points.

In other words, the input x = 1 leads to more than one output, which is a counter-example to show we do not have a function.

A function is only possible if each input in the domain leads to exactly one output in the range.

Since we don't have a function, you don't need to worry about filling in the domain and range boxes.

Final answer:

The graph is a function with a domain of (-infinity, infinity) and a range of (-infinity, infinity).

Explanation:

The graph represents a function because for each value of x, there is exactly one corresponding value of y. As a result, the vertical line test is passed.

The domain of the function is the set of all x-values for which the function is defined. In this case, it appears that the graph extends from x = -infinity to x = infinity, so the domain is (-infinity, infinity).

The function's range is the set of all y-values that the function can yield. According to the graph, the y-values vary from y = -infinity to y = infinite, resulting in the range (-infinity, infinity).

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Find the following percentiles for the standard normal distribution. Interpolate where appropriate. (Round your answers to two decimal places.)
(a) 71st
(b) 29th
(c) 76th
(d) 24th
(e) 7th
You may need to use the appropriate table in the Appendix of Tables to answer this question.

Answers

(a) 0.52, (b) -0.54, (c) 0.68, (d) -0.71, (e) -1.44 - Percentiles for standard normal distribution using z-table.

(a) To find the 71st percentile, we search for the z-score that relates to a combined area of 0.71 to one side of the mean. From the standard typical circulation table, we find that the nearest z-scores are 0.67 and 0.72, with relating areas of 0.7486 and 0.7642, individually. To interject, we utilize the equation:

z = z1 + (z2 - z1) * ((p - p1)/(p2 - p1))

where z1 and z2 are the nearest z-scores in the table, p1 and p2 are the comparing regions, and p is the ideal total region (0.71). Connecting the qualities, we get:

z = 0.67 + (0.72 - 0.67) * ((0.71 - 0.7486)/(0.7642 - 0.7486)) = 0.52

Consequently, the 71st percentile is z = 0.52.

(b) To find the 29th percentile, we search for the z-score that compares to a combined area of 0.29 to one side of the mean. From the standard ordinary conveyance table, we find that the nearest z-scores are - 0.53 and - 0.52, with relating areas of 0.2981 and 0.3050, individually. To add, we utilize the recipe:

z = z1 + (z2 - z1) * ((p - p1)/(p2 - p1))

where z1 and z2 are the nearest z-scores in the table, p1 and p2 are the comparing regions, and p is the ideal total region (0.29). Connecting the qualities, we get:

z = - 0.53 + (- 0.52 - (- 0.53)) * ((0.29 - 0.2981)/(0.3050 - 0.2981)) = - 0.54

Consequently, the 29th percentile is z = - 0.54.

(c) To find the 76th percentile, we search for the z-score that relates to an aggregate area of 0.76 to one side of the mean. From the standard ordinary appropriation table, we find that the nearest z-scores are 0.73 and 0.77, with relating areas of 0.7673 and 0.7794, separately. To interject, we utilize the equation:

z = z1 + (z2 - z1) * ((p - p1)/(p2 - p1))

where z1 and z2 are the nearest z-scores in the table, p1 and p2 are the comparing regions, and p is the ideal total region (0.76). Connecting the qualities, we get:

z = 0.73 + (0.77 - 0.73) * ((0.76 - 0.7673)/(0.7794 - 0.7673)) = 0.68

Consequently, the 76th percentile is z = 0.68.

(d) The 24th percentile compares to a z-score of - 0.71, meaning 24% of the standard ordinary conveyance misleads its left.

(e) The seventh percentile relates to a z-score of - 1.44, meaning 7% of the standard typical conveyance misleads its left.

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HELPPPP
1.Use the given degree of confidence and sample data to construct a confidence interval for the population mean, . Assume that the population has a normal distribution.

The amounts (in ounces) of juice in eight randomly selected juice bottles are:

15.2 15.5 15.9 15.5 15.0 15.7 15.0 15.7

Construct a 90% confidence interval for the mean amount of juice in all such bottles.

Responses

A.(15.16, 15.72)


B.(15.21, 15.66)


C.(15.27, 15.61)


D.(15.08, 15.80)


2.Use the given degree of confidence and sample data to construct a confidence interval for the population mean, .

The monthly income of workers at a manufacturing plant are distributed normally. Suppose the mean monthly income is $2,150 and the standard deviation is $250 for a SRS of 18 workers. Find a 99% confidence interval for the mean monthly income for all workers at the plant.​​​​​​​

Responses

A.(2096, 2204)


B.(1842, 2457)


C.(2144, 2155)


D.(1979, 2321)

Answers

Answer:

To construct a 90% confidence interval for the mean amount of juice in all such bottles, we first need to find the sample mean and sample standard deviation:

Sample mean, x = (15.2 + 15.5 + 15.9 + 15.5 + 15.0 + 15.7 + 15.0 + 15.7)/8 = 15.4375

Sample standard deviation, s = s = sqrt[((15.2-15.4375)^2 + (15.5-15.4375)^2 + (15.9-15.4375)^2 + (15.5-15.4375)^2 + (15.0-15.4375)^2 + (15.7-15.4375)^2 + (15.0-15.4375)^2 + (15.7-15.4375)^2)/7] = 0.339

Using a t-distribution with degrees of freedom (n-1) = 7 and a 90% confidence level, we can find the t-value as 1.895.

The 90% confidence interval can then be calculated as:

x plus or minus (t-value)*(s/sqrt(n))

= 15.4375 plus or minus (1.895)*(0.339/sqrt(8))

= (15.16, 15.72)

Therefore, the answer is A.

To find a 99% confidence interval for the mean monthly income for all workers at the plant, we use the formula:

x plus or minus (z-value)*(σ/sqrt(n))

where x is the sample mean, σ is the population standard deviation, n is the sample size, and z-value is the critical value from the standard normal distribution for a 99% confidence level, which is 2.576.

Plugging in the given values, we get:

x  plus or minus (z-value)*(σ/sqrt(n))

= 2150  plus or minus (2.576)*(250/sqrt(18))

= (2096, 2204)

Therefore, the answer is A.

Is every point of every open set E C R2 a limit point o E Answer the same question for closed sets in R2 is it the same?

Answers

Every point of an open set in R2 is a limit point, but only the boundary points of a closed set are limit points.

Every point of every open set E in R2 is a limit point of E. This is because an open set is characterized by the fact that all of its boundary points are included in the set. Therefore, all of the points in the set are limit points because they are all on the boundary of the set.

For closed sets in R2, the answer is not the same. A closed set is characterized by the fact that it is determined by its boundary points and all of its interior points. Therefore, only the boundary points of a closed set are limit points, while the interior points are not.

Every point of an open set in R2 is a limit point, but only the boundary points of a closed set are limit points.

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Which expression has a value of 18?
5 × (40 – 25) – 50
6x (3212) (100 +50)
-
(6 + 18+6) + 15 + 10
07+ (16-7)+3+8

Answers

To determine which expression has a value of 18, we can evaluate each expression and see which one equals 18.

5 × (40 – 25) – 50 = 5 × 15 – 50 = 75 – 50 = 25, which is not equal to 18.

6x (3212) (100 +50) - (6 + 18+6) + 15 + 10 = 6 × 3212 × 150 - 30 + 25 = 29,021,770, which is not equal to 18.

07+ (16-7)+3+8 = 7 + 9 + 3 + 8 = 27, which is not equal to 18.

Therefore, none of the given expressions has a value of 18.

Please help! What is the rate of change (slope) of the graph

Answers

The rate of change on a slope graph is 25.

How do you find the rate of change on a slope graph?

The rate of change for a line is the slope, the rise over run, or the change in over the change in. The slope can be calculated from two points in a table or from the slope triangle in a graph.

The average rate of change formula is used to find the slope of a graphed function. To find the average rate of change, divide the change in y-values by the change in x-values.

Given :

Y - variations = 0 , 25 , 50 ,75 , 100 , 125..........

X - variations = 0 , 1 , 2 , 3 , 4 , 5 , 6 .........

Thus , we can formulate the points as,

(0,0) , (1,25) , (2,50) , (3,75) and so on ...

for rate of change of graph with (x1 , y1) and (x2 , y2) as co-ordinate point we know that,

rate of change = (y2-y1)/(x2-x1)

Similarly ,by taking any two points(let (0,0) and (1,25)) from formulated points , we can say that

rate of change = (25-0)/(1-0)

rate of change = 25

Hence , the rate of change on a slope graph is 25.

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If Steve drives 5 miles to school at 10 mph and returns home at 40 mph, what is his average speed?

Answers

Answer:

Step-by-step explanation:

To find the average speed for the round trip, we can use the formula:

average speed = total distance / total time

We know that Steve drives 5 miles to school and 5 miles back home, so the total distance is:

total distance = 5 miles + 5 miles = 10 miles

To find the total time, we need to calculate the time it takes for Steve to drive to school and the time it takes for him to return home. We can use the formula:

time = distance / speed

For the first part of the trip, Steve drives 5 miles at 10 mph, so the time it takes is:

time to school = 5 miles / 10 mph = 0.5 hours

For the second part of the trip, Steve drives 5 miles at 40 mph, so the time it takes is:

time to home = 5 miles / 40 mph = 0.125 hours

The total time for the round trip is the sum of the time to school and the time to home:

total time = time to school + time to home

total time = 0.5 hours + 0.125 hours

total time = 0.625 hours

Now we can calculate the average speed using the formula:

average speed = total distance / total time

average speed = 10 miles / 0.625 hours

average speed = 16 miles per hour (rounded to the nearest integer)

Therefore, Steve's average speed for the round trip is 16 mph.

Answer:

16 mph

Step-by-step explanation:

Measurement scales match-up Aa Aa Select the measurement scale in the right column that best matches the description in the left column. Note that each scale (nominal scale, ordinal scale, interval scale, and ratio scale) will be used exactly once. The values of data measured on this scale can be rank ordered. In addition, the differences between two adjacent ranks are equal. The values of data measured on this scale can be rank ordered and have meaningful an absolute zero point. The values of data measured on this scale can be rank ordered. The values of data measured on this scale are labels or names. Interval Scale Nominal Scale differences between scale points. For this scale, there is also Ordinal Scale

Answers

The values of data measured on this scale are labels or names. -> Nominal Scale

The values of data measured on this scale can be rank ordered. -> Ordinal Scale. The values of data measured on this scale can be rank ordered and have meaningful an absolute zero point. -> Ratio Scale

The values of data measured on this scale can be rank ordered. In addition, the differences between two adjacent ranks are equal. -> Interval Scale

Nominal Scale: In the nominal scale, the values of data are labels or names used to categorize or classify items into mutually exclusive groups. Nominal data cannot be ordered, measured, or compared. Examples of nominal data include gender (male, female), eye color (blue, brown, green), or car brands (Toyota, Honda, Ford).

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Researchers conducted a naturalistic study of children between the ages of 5 and 7 years. The researchers visited classrooms during class party celebrations. As a measure of hyperactivity, they recorded the number of times children left their seats. The researchers found a strong positive correlation between sugary snacks offered at the parties and hyperactivity. Based on these findings, the researchers concluded that sugar causes hyperactivity a. Explain why people may easily accept the conclusion of the study described above? Include in your explanation a misunderstanding of correlational studies b. As a follow-up study, the researchers are designing an experiment to test whether sugar causes hyperactivity. For the experiment, please do the following. 2 o State a possible hypothesis. wg on Operationally define the independent and dependent variables. 0" h o vo Describe how random assignment can be achieved, and why it is important for experiments we aus dren to e

Answers

The people may easily accept the conclusion of the study described because of a common misunderstanding of correlational studies.

The Correlational Studies are used to examine the relationship between two variables, and a positive correlation suggests that the two variables are related in a certain way .

In this study, the Researchers found a strong positive correlation between sugary snacks and hyperactivity, suggesting that as the amount of sugary snacks offered increased, the number of times children left their seats also increased.

Therefore , people easily accept the conclusion of the study that sugar causes hyperactivity due to a misunderstanding of correlational studies and a lack of knowledge about the need for experimental designs to establish causality.

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The given question is incomplete , the complete question is

Researchers conducted a naturalistic study of children between the ages of 5 and 7 years. The researchers visited classrooms during class party celebrations. As a measure of hyperactivity, they recorded the number of times children left their seats. The researchers found a strong positive correlation between sugary snacks offered at the parties and hyperactivity.

Based on these findings, the researchers concluded that sugar causes hyperactivity.

Explain why people may easily accept the conclusion of the study described above? Include in your explanation a misunderstanding of correlational studies

i need help with this anwser

Answers

The missing side length of the figure is given as follows:

6 cm.

What is the segment addition postulate?

The segment addition postulate is a geometry axiom that states that a segment, divided into a number of smaller segments, has the length given by the sum of the lengths of the segments.

For this problem, we have that:

The larger segment is of 16 cm.The smaller segment is of 10 cm.

Hence the missing side length of the figure is obtained as follows:

16 - 10 = 6 cm.

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Tell whether the angles are adjacent or vertical. Then find the value of x.



response - correct


The angles are vertical.

Question 2
x=

Answers

The angles are vertically opposite angles and the measure of x = 81

What are the angles formed by 2 intersecting lines?

Two straight lines that intersect at the same location are said to be intersecting lines. The junction point is the place where two intersecting lines meet. Four angles are created when two lines cross. The four angles added together always equal 360 degrees.

Perpendicular lines are two straight lines that intersect and form right angles. When two perpendicular lines intersect, they form four right angles.

When lines intersect, two angle relationships are formed:

Opposite angles are congruent

Adjacent angles are supplementary

Given data ,

Let the first line be represented as m

Let the second line be represented as n

Now , the lines m and n intersect at point O and the resulting lines are formed

where ∠A = ∠B ( vertically opposite angles )

So , the measure of ( x + 3 )° = 84°

On simplifying , we get

x + 3 = 84

Subtracting 3 on both sides , we get

x = 81

Hence , the measure of angles are opposite angles

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Suppose a die has been loaded so that a six is scored three times more often than any other score, while all the other scores are equally likely. Express your answers to three decimals.
Part a)
What is the probability of scoring a one?
Part b)
What is the probability of scoring a six?

Answers

a) The probability of scoring a one is 1/7, since a one is not the loaded number six and all other scores are equally likely.

b) The probability of scoring a six is 3/7, since a six is the loaded number and occurs three times as often as any other score.

Let p be the probability of scoring any number except six. Then the probability of scoring a six is 3p, since a six is scored three times more often than any other score. Since there are six equally likely possible scores on a die, we have:

p + 3p + p + p + p + p = 1

Simplifying, we get:

7p = 1

Dividing both sides by 7, we get:

p = 1/7

Therefore, the probability of scoring any number except six is 1/7, and the probability of scoring a six is 3/7. We can now answer the questions:

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I will give both BRAINLIEST and ratings if correct

Answers

Answer:

Part A: length = 4x - 5

Part B: See explanation below

Step-by-step explanation:

Part A

Area of a rectangle = length x width

Given area and width we can find the length as

[tex]length = \dfrac{area}{width}[/tex]

[tex]Area = 12x^2 - 15x\\\\Width = 3x\\\\Length = \dfrac{12x^2 - 15x}{3x}\\\\= \dfrac{12x^2}{3x} - \dfrac{15x}{3x}\\\\= 4x - 5\\\\[/tex]

Answer to Part A

Part B


[tex]length = 4x- 5\; (from part A)}[/tex]

[tex]width = 3x \;(given)}[/tex]

[tex]area = length \times width[/tex]

[tex]=(4x - 5)(3x)\\\\= 4x(3x) - 5(3x)\\\\= 12x^2 - 15x\\\\[/tex]

Hence verified

you have a toonie, a loonie, and three quarters. Hiw many different sums of money can you make?

Answers

The given sum of money in cents as 375 cents.

What is money?

Money is any item or medium of exchange that is accepted by people for the payment of goods and services, as well as the repayment of loans.

Given that, person has a toonie, a loonie, and three quarters.

1 Toonie = 2 dollars

1 Loonie = 1 dollar

3 quarters = 0.75 dollars

So, sum of money = 2+1+0.75

= 3.75 dollars

1 Toonie = 200 cents

1 Loonie = 100 cents

3 quarters = 75 cents

Sum of money = 200+100+75

= 375 cents

1 Toonie = 8 quarters

1 Loonie = 4 quarters

So, in quarters = 8+4+3

= 15 quarters

Therefore, the given sum of money in cents as 375 cents.

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A random sample of 10 subjects have weights with a standard deviation of 10.3695 kg. What is the variance of their​ weights? Be sure to include the appropriate units with the result.

Answers

Answer:

Since we are given the standard deviation of the sample, we can use the formula:

variance = standard deviation^2

Substituting the given value:

variance = 10.3695^2 kg^2

Calculating:

variance ≈ 107.495 kg^2

Therefore, the variance of the weights of the 10 subjects is approximately 107.495 kg^2.

stuck on this. pls do 2-6

Answers

All the areas of the circles are illustrated below.

What are the circumference and diameter of a circle?

The circumference of a circle is the distance around the circle which is 2πr.

The diameter of a circle is the largest chord that passes through the center of a circle it is 2r.

We know, The area of the circle is πr².

1. The area of the circle with a radius of 2.5 cm is,

= π(2.5)² sq cm.

= 19.625 sq cm.

2. The area of the circle with a radius of 11 in is,

= π(11)² sq in.

= 379.94 sq in.

3. The area of the circle with a radius of 3 mm is,

= π(3)² sq mm.

= 28.26 sq mm.

4. The area of the circle with a radius of 5 in is,

=  π(5)² sq in.

= 78.5 sq in.

5.  The area of the circle with a radius of 6.5 cm is,

= π(6.5)² sq cm.

= 132.665 sq cm.

6.   The area of the circle with a radius of 7.2 yd is,

= π(7.2)² sq yd.

= 162.7776 sq yd.

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. For every 16 games the football team won, they lost four.
Represent the ratio of games won to games played in fraction form and decimal form.
Select TWO correct answers.

Answers

The ratio of games won to games played is options A and E, 16/20 or 4/5 in fraction form and 0.8 in decimal form.

What is Ratio?

Ratio is defined as the relationship between two quantities where it tells how much one quantity is contained in the other.

The ratio of a and b is denoted as a : b.

Given that,

For every 16 games the football team won, they lost four.

Games won = 16

Games lost = 4

Total games played = 16 + 4 = 20

Ratio of games won to total games in fractional form = 16 / 20 = 4/5

Ratio of games won to total games in decimal form = 0.8

The correct options are A and E.

Hence the ratio of games won to total games is 16/20 or 4/5 in fraction form and 0.8 in decimal form.

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Your question is incomplete. The complete question is given below.

Manchester Football team participates in a tournament. For every 16 games the football team won, they lost four. Represent the ratio of games won to games played in fraction form and decimal form.

Select TWO correct answers.

A. 4/5, 0.8

B.  1/2, 0.5

C.  2/4, 0.5

D. 1 /4, 0.25

E.  16/20, 0.8

Obtain an initial basic feasible solution to the following transportation problem

using Vogel’s approximation method.

D1

D2

D3

D4

A

5

1

3

3

34

B

3

3

5

4

15

C

6

4

4

3

12

D

4

-1

4

2

19

21

25

17

17

80

Answers

Vogel's approximation method is used to find an initial feasible solution to a transportation problem.

The method is based on the observation that if there is a row or a column in the transportation tableau having the same minimum positive difference (or penalty) between the costs of two cells, it is likely that one of these cells will get a positive allocation in the optimal solution.

How to find an initial solution using Vogel's approximation method

Calculate the penalty for each cell by subtracting the smaller of the two adjacent cells from the larger.

D1 D2 D3 D4 A B C D

5 1 3 3 34 3 6 4

Penalty 0 2 0 1 31 2 2 -1

3 3 5 4 15 3 4 -1

Penalty 0 0 2 1 12 2 2 2

6 4 4 3 12 4 3 2

Penalty 2 1 1 0 6 1 0 1

4 -1 4 2 19 2 3 2

Penalty 5 5 2 0 17 2 0 0

Identify the row and column having the maximum penalty. In this case, the maximum penalty is 5 in row 1 and column 4.

Allocate as much as possible to the cell in the intersection of the row and column with the maximum penalty. The allocation should not exceed the demand or the supply of that row or column.

D1 D2 D3 D4 A B C D

5 1 3 2 34 3 6 4

Penalty 0 2 0 1 31 2 2 -1

3 3 5 3 15 3 4 -1

Penalty 0 0 2 1 12 2 2 2

6 4 4 3 12 4 3 2

Penalty 2 1 1 0 6 1 0 1

4 -1 4 2 19 2 3 2

Penalty 5 5 2 0 17 2 0 0

Repeat the process until all demands are met or all supplies are exhausted.

D1 D2 D3 D4 A B C D

5 1 2 2 34 3 6 3

Penalty 0 2 0 0 32 2 2 -1

3 3 5 3 15 3 3 0

Penalty 0 0 2 0 12 2 1 2

6 4 4 3 12 4 0 1

Penalty 2 1 1 0 6 1 0 0

4 -1 4 2 19 2 3 1

Penalty 5 5 2 0 17 2 0 0

The above table shows an initial feasible solution to the transportation problem using Vogel's approximation method. The total cost of this solution is 34 + 15 + 12 + 19 = 80, which is the same

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A 1600 kg (empty) dump truck rolls with a speed of 2.5 m/s under a loading
bin and a mass of 3500 kg is deposited in the truck. Assuming the truck does
not stop to receive its load, what is the speed of the truck immediately after
loading?

Answers

The principle of conservation of momentum can be used to find the speed of the truck after loading. Before loading, the momentum of the truck is given by:

p1 = m1 * v1

where m1 is the mass of the truck (1600 kg) and v1 is the speed of the truck (2.5 m/s). After loading, the total mass of the system is the mass of the truck and the load, which is 1600 kg + 3500 kg = 5100 kg. The speed of the truck after loading is given by:

v2 = p1 / (m1 + m2)

where m2 is the mass of the load (3500 kg). Plugging in the values, we get:

v2 = (1600 kg * 2.5 m/s) / (1600 kg + 3500 kg) = 2.23 m/s.

So the speed of the truck immediately after loading is 2.23 m/s.

Triangle ABC is similar to triangle FGH. Given the following angle measures, find the missing angle measures.


m∠A = 22 degrees


m∠B = 75 degrees


m∠F = _____ degrees

m∠G = _____ degrees

m∠H = _____ degrees

m∠C = _____ degrees

Answers

Answer:

Since triangle ABC is similar to triangle FGH, their angle measures are proportional. We can use the ratios of their angle measures to find the missing angle measures.

Let's call the missing angle measures x, y, z, and w, where x is m∠F, y is m∠G, z is m∠H, and w is m∠C.

From the given information, we have:

m∠A / m∠F = 22 / x

m∠B / m∠G = 75 / y

Since m∠A + m∠B + m∠C = 180 degrees, we can write:

w = 180 - (m∠A + m∠B)

m∠H / m∠C = z / w

Now we can use the ratios to find the missing angle measures:

x = 22 / (22 / x) = 22

y = 75 / (75 / y) = 75

z = m∠H / (m∠H / z) = m∠H

w = 180 - (22 + 75) = 83

So, the missing angle measures are:

m∠F = 22 degrees

m∠G = 75 degrees

m∠H = m∠H (unknown)

m∠C = 83 degrees

80 POINTS!!! PLEASE HELP
Use the table and the data provided to analyze the following data.

During gym class, the pulse rate was recorded for 19 students before and after an exercise warm-up. The pulse rates are listed below.
(View file attached)
Part A: Create a stem-and-leaf plot for each set of data. Justify your reasoning for split or non-split stems. (10 points)

Part B: Compare and contrast the two data sets. Justify your answer using key features of the data (shape, outliers, center, and spread). (10 points)

Part C: Did exercise appear to have changed the pulse rates for the students? Justify your answer using your comparisons from part B. (10 points)

Answers

Step-by-step explanation: A stem and leaf plot is a way to plot data where the data is split into stems (the largest digit) and leaves (the smallest digits). They were widely used before the advent of the personal computer, as they were a fast way to sketch data distributions by hand.

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