The measure of it's opposite angle is 135
How to determine the measure of it's opposite angleFrom the question, we have the following parameters that can be used in our computation:
The base angles equals 45
Using the above as a guide, we have the following:
Base angle + Opposite angle = 180
Substitute the known values in the above equation, so, we have the following representation
45 + Opposite angle = 180
Evaluate the like terms
Opposite angle = 135
Hence, the angle is 135 degrees
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Tanya is training a turtle for a turtle race. For every 5/6of an hour that the turtle is crawling, he can travel 3/20 of a mile. At what rate is the turtle crawling in miles per hour?
Answer:
The rate at which the turtle is crawling can be found by dividing the distance traveled in miles by the time in hours.
So, the turtle can travel 3/20 of a mile in 5/6 of an hour, which means that the turtle is crawling at a rate of (3/20) / (5/6) miles per hour.
To simplify, we need to convert both the numerator and denominator to a common unit. If we multiply the numerator and denominator by 6, we get:
(3/20) * 6 / (5/6) * 6 = 3 / 5 miles per hour.
Therefore, the turtle is crawling at a rate of 3/5 miles per hour.
actually give you 20 points if you can solve this correctly and give you brainless and under 20 minutes
Answer:
Factor 3x+3
3x+3
=3(x+1)
Answer:
P=2[9x-3]
Step-by-step explanation:
perimeter of rectangle =2(L+W)=2L+2W
where P=perimeter of rectangle
L=length of rectangle =3x+3
W=width of rectangle =6x-6
P=2[(3x+3)+(6x-6)]
P=2[3x+3+6x-6]
P=2[9x-3]
what is the average rate of change of the function f(x)=3x²-5 over the interval [2,6]?
12
3
48
24
Answer:
24
Step-by-step explanation:
The rate of change over a function f(x) is given by its first derivative
[tex]f'(x) = \dfrac{d}{dx} (f(x))[/tex]
[tex]\mathrm{Differentiating\; f(x) = 3x^2- 5 \;w.r.t \;x : }[/tex]
[tex]\dfrac{d}{dx}\left(3x^2-5\right) = \dfrac{d}{dx}\left(3x^2\right)-\dfrac{d}{dx}\left(5\right)\\\\= 6x - 0\\\\= 6x\\\\[/tex]
[tex]f'(x) = 6x\\\\[/tex]
Over the interval [2, 6] the average rate of change would be [tex]f'(6) - f'(2)[/tex]
[tex]f'(6) = 6 \cdot 6 = 36\\\\f'(2) = 6\cdot 2 = 12\\\\f'(6) - f'(2) = 36 - 12 = 24\\\\[/tex]
Average rate of change of the function f(x)=3x²-5 over the interval [2,6]
= 24
Can someone look at this and explain this to me
Answer:
Below
Step-by-step explanation:
The two angles labeled are alternate angles of a pair of parallel lines crossed by a transversal ( the diagonal) ....so they are equal
x+ 18 = 4x+15 Solve for x
3 = 3x ====> x = 1
Now....x+18 angle and angle ABD are complementary....the add to 90 °
so x+18 + ABD = 90° x = 1 from above....so
1 + 18 + ABD = 90
19 + ABD = 90
ABD = 71 °
A meteorite hit Earth sixty five million years ago
The statement that correctly describes whether this is a theory or a law is C. It is a theory, because it explains the cause of the dinosaur extinction.
How does a law differ from a theory ?A law is a statement that describes a general observation or a relationship that has been consistently proven through experimentation and evidence. A theory, on the other hand, is a more comprehensive explanation that helps to understand a wide range of observations and experimental results.
The excerpt spoke on how a meteorite hitting Earth led to the extinction of the dinosaurs. However, this is not a law as it aims to explain why dinosaurs died out.
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The full question is:
A meteorite hit Earth sixty five million years ago. Scientists have found a high concentration of iridium in the sedimentary clay layer from this time period. Iridium is very rare in Earth’s crust, but it is abundant in meteorites. Scientists believe this impact caused the extinction of the dinosaurs. Which of these statements correctly describes whether this is a theory or a law and why?
A. It is a law, because it includes a numerical analysis.
B. It is a law, because it explains all causes of animal extinction.
C. It is a theory, because it explains the cause of the dinosaur extinction.
D. It is a theory, because it shows regular patterns from a generalization of the data.
if lance makes $8.50 an hour, how much money will he earn if he works for 40 hours
Step-by-step explanation:
Lance makes 8.5 an hour
He works for 40 hours
This means he earns 8.5 40 times
So 8.5 x 40
Which equals 340
This means lance earned $340.
what is the lcm of 22 and 77
Answer:154 LCM I hope this helps mark me brainlist
Step-by-step explanation:
The Least Common Multiple (LCM) of 22 and 77 is 154.
To get the Least Common Multiple (LCM) of 22 and 77 we need to factor each value first and then we choose all the factors which appear in any column and multiply them:
22: 2 11
77: 7 11
______
LCM 2711
The Least Common Multiple (LCM) is:
2 times 7 times 7=154
which statement best describes the difference between the formula for population and sample variance?
The formula for population variance uses the division of (sum of squared deviations) by the total number of elements in the population, while the formula for sample variance uses the division of (sum of squared deviations) by the sample size minus one.
Difference between the formula for population and sample variance?The formula for population variance uses the division of (sum of squared deviations) by the total number of elements in the population, while the formula for sample variance uses the division of (sum of squared deviations) by the sample size minus one.
The formula for population variance is given by:
σ² = (1/N) * ∑(X - μ)²,
where N is the total number of elements in the population, X is an individual value in the population, and μ is the mean of the population.
s²= (1/(n-1)) * ∑(X - m)²,
where n is the sample size and m is the mean of the sample.
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Find the value of a.
K,L,H (4A-8')
The attatchment is what needs to be solved!!
the value of a will be 17 for the given set of data.
What are the properties of a Triangle?The properties of the triangle are: The sum of all the angles of a triangle (of all types) is equal to 180°. The sum of the length of the two sides of a triangle is greater than the length of the third side. In the same way, the difference between the two sides of a triangle is less than the length of the third side.
Given, KLH is an equilateral triangle.
Since we all know that all angles of an equilateral triangle are equal.
Also From the property of the triangles:
Sum of all angles = 180°
∠K + ∠L + ∠H = 180°
3 * (4a -8) = 180
4a -8 = 60
4a = 68
a = 17
Therefore, the value of a will be 17 for the given set of data.
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HELP ASAP QUESTION 1
The measure of the angle m∠BDE obtained using the exterior angles theorem is 86°. The correct option is therefore;
86°
What is the exterior angle theorem?The exterior angle theorem states that the angle formed by two secants, a secant and a tangent or two tangents of a circle is equivalent to the half of the difference of the arcs intercepted.
The specified interior angle of the triangle ΔOBJ, ∠J = 47°
The segments OJ and BO are radial lengths of the circle, therefore;
JO ≅ BO
JO = BO (definition of congruency)
The triangle ΔOBJ is an isosceles triangle (definition of isosceles triangles)
∠J ≅ ∠B (Base angles of an isosceles triangle)
∠B = ∠J = 47°
m∠BOJ = 180°- 47° - 47° = 86° (angle sum property of a triangle)
Whereby EJ is a diameter of the circle, with center at O, we get;
∠BOJ and ∠BOE are linear pair angles, therefore;
m∠BOJ + m∠BOE = 180° (Linear pair angles are supplementary)
m∠BOE = 180° - m∠BOJ
m∠BOE = 180° - 86° = 94°
The exterior angle theorem indicates that we get;
m∠BDE = Half the difference of the intercepted arcs BJE and BE, found as follows;
[tex]m\widehat{BE}[/tex] = m∠BOE = 94°
[tex]m\widehat{BJE}[/tex] = 360° - m∠BOE = 360° - 94° = 266°
[tex]m\widehat{BJE}[/tex] = 266°
m∠BDE = ([tex]m\widehat{BJE}[/tex] - [tex]m\widehat{BE}[/tex])/2
m∠BDE = (266° - 94°)/2 = 86°
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I have two recipes for cake. The first recipe calls for 2 1/2 cups of flour and the second one calls for 3 1/3 cups of flour. How much flour do I need to make three of each cake?
[tex]17\frac{1}{2}[/tex] cups of flour we need to make three of each cake.
What is Fraction?A fraction represents a part of a whole.
Given that the first recipe calls for 2 1/2 cups of flour and the second one calls for 3 1/3 cups of flour.
We need to make three of each cakes.
[tex]2\frac{1}{2}[/tex] cups x 3 = [tex]7\frac{1}{2}[/tex] cups of flour for the first recipe.
And for the second recipe [tex]3\frac{1}{3}[/tex] cups x 3 = 10 cups of flour.
So in total [tex]7\frac{1}{2}[/tex] cups + 10 cups = [tex]17\frac{1}{2}[/tex] cups of flour.
Hence, [tex]17\frac{1}{2}[/tex] cups of flour we need to make three of each cake.
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Find an equation of the vertical line through (7,-7).
Write in standard form
Answer:
Below
Step-by-step explanation:
a vertical line is just X = ......
So for this one through the point 7,-7 just x = 7
Referring to the figure, match the system of linear inequalities
with its graph.
a. -x + y < 2 b. -x + y > 2
-x + y ≥ -2 x + y ≤ -2
c. -x + y > -2 d. -x + y ≤ 2
x + y ≤ 2 x + y < 2
Note that the system of linear inequalities that match the graph is: Option D . -x + y ≤ 2; x + y ≤ 2; x + y < 2-
What is a system of linear inequalities?A system of linear inequalities is similar to a system of linear equations, except that it is made up of inequalities rather than equations. To represent scenarios with various restrictions, systems of linear inequalities are utilized.
A system of linear equations is a group of two or more linear equations that include the same variables in mathematics. Linear equations are defined as first-order equations when the maximum power of the variable is 1. One, two, or three variables can be used in linear equations.
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a sample of 26 offshore oil workers took part in a simulated escape exercise, resulting in the accompanying data on time (sec) to complete the escape:
It took the 26 offshore oil workers an average of 94.85 seconds to complete the simulated escape exercise, with a variance of 828.19 and a standard deviation of 28.79 seconds.
The data set consists of 26 offshore oil workers who took part in a simulated escape exercise. The data set measures the time (in seconds) it took for each worker to complete the escape. To analyze the data, we can calculate the mean, variance, and standard deviation.
The mean is calculated by adding up the time for each worker and dividing the sum by the total number of workers (26). This results in a mean of 94.85 seconds.
The variance is calculated by subtracting the mean from each individual time, squaring the results, adding the squared results together, and dividing the sum by the total number of workers (26). This results in a variance of 828.19.
The standard deviation is calculated by taking the square root of the variance. This results in a standard deviation of 28.79 seconds.
In conclusion, it took the 26 offshore oil workers an average of 94.85 seconds to complete the simulated escape exercise, with a variance of 828.19 and a standard deviation of 28.79 seconds.
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Evaluate cos 80 degree ÷ sin 10 degree
Answer: 15.40205
Step-by-step explanation:
The expression "cos 80° ÷ sin 10°" can be evaluated using the reciprocal identity of sine and cosine.
First, we convert 80° to its radian equivalent: 80° x (π/180°) = 4π/9 radians.
Next, we use the reciprocal identity of sine and cosine:
cos (θ) ÷ sin (θ) = cot (θ)
So,
cos 80° ÷ sin 10° = cot (10°).
The value of cot (10°) can be found using a calculator or a table of trigonometric values. The exact value is approximately 15.40205.
i need help with problem b
The p-value of the test is 0.112
What is the p-value for the testTo determine whether the consumer group's belief is supported by the sample data, we can perform a one-sample t-test.
The null hypothesis is that the true average score improvement is equal to 50 points, while the alternative hypothesis is that it is less than 50 points.
Using the sample data, we can calculate the t-statistic as:
t = (sample mean - hypothesized mean) / (sample standard deviation / sqrt(sample size))
t = (44 - 50) / (27 / √(31))
t = -1.24
The degrees of freedom for this test is 30 (sample size minus one).
Using a t-distribution table or calculator, we can find the p-value associated with this t-statistic and degrees of freedom, which is the probability of observing a t-statistic as extreme as -1.24 or more extreme, assuming that the null hypothesis is true.
The p-value is approximately 0.112.
Since the p-value is less than the significance level of 0.05, we reject the null hypothesis and conclude that there is evidence that the true average score improvement is less than 50 points.
Therefore, the consumer group's belief is supported by the sample data.
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The measures of the angles of a triangle are shown in the figure below. Find the
measure of the smallest angle.
90°
(4x-7)°
(3x-15)°
The measure of the smallest angle of the triangle would be = 33°
How to calculate the angle measurement of a triangle?The total angle measurement of a triangle is a total of 180°.
That is ;
180° = 90 + (4x-7)° + (3x-15)°
180 = 90-7-15+4x+3x
180 = 90-22+7x
180 = 68+7x
180-68 = 7x
7x = 112
X= 112/7
X= 16
substitute X=16 into both angles (4x-7)° and (3x-15)° to know the smallest.
= 4(16)-7
= 64-7
= 57°
and;
= 3(16)-15
= 48-15
= 33°
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The size of fish is very important to commercial fishing. A study conducted in 2012 found the length of Atlantic cod caught in nets in Karlskrona to have a mean of 49.9 cm and a standard deviation of 3.74 cm.
Round the probabilities to four decimal places.
It is possible with rounding for a probability to be 0.0000.
b) Find the probability that a randomly selected Atlantic cod has a length of 38.68 cm or more.
this is my homework problem
The probability that a randomly selected Atlantic cod has a length of 53.68 cm or less is given by the equation P ( x > 38.68 ) = 0.99865
What is a z-score?The relationship between a value and the mean of a set of values is expressed numerically by a Z-score. The Z-score is computed using the standard deviations from the mean. A Z-score of zero indicates that the data point's score and the mean score are identical.
The Z-score is calculated using the formula:
z = (x - μ)/σ
where z: standard score
x: observed value
μ: mean of the sample
σ: standard deviation of the sample
Given data ,
Let the probability that a randomly selected Atlantic cod has a length of 53.68 cm or less be represented as P
Now , the equation will be
The observed value of x = 38.68 cm
The mean of the sample μ = 49.9 cm
The standard deviation of the sample σ = 3.74 cm
Now , z-score is calculated using the formula:
z = (x - μ)/σ
Substituting the values in the equation , we get
z = ( 38.68 - 49.9 ) / 3.74
z = -3
Now ,the p value from the z table is
P ( x > 38.68 ) = 1 - P ( x < 38.68 )
P ( x < 38.68 ) = 0.0013499
P ( x > 38.68 ) = 0.99865
And , the probability is P ( x > 38.68 ) = 0.99865 = 99.865 %
Hence , the probability is 84.392 %
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Select the correct answer.
Use a graphing tool to solve the equation for x.
-3x+2=4x+2
The value of x in the given equation -3x+2=4x+2 is x=0.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given equation is -3x+2=4x+2
Minus three times of x plus two equal to four times of x plus two.
-3x+2=4x+2
Add 3x on both the sides
2=4x+3x+2
x=0
Hence, the value of x in the given equation -3x+2=4x+2 is x=0.
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Determine whether the given value is a statistic or a parameter. Thirty percent of all dog owners poop scoop after their dog. -Parameter. -Statistic.
A statistic is an estimate or calculation based on a sample size of data, while a parameter is a numerical characteristic of an entire population.
A statistic is a value or set of values which are calculated from a sample of data. Statistic values are used to measure attributes of a population, such as the mean, median, or mode of a population. Statistic values are estimates and can be subject to sampling error. Parameters, on the other hand, are numerical characteristics of an entire population. Parameters are fixed values which describe the population as a whole. For example, thirty percent of all dog owners might be a statistic, as it is an estimate based on a sample of data. However, the total number of dog owners would be a parameter, as it describes the entire population of dog owners. Parameters are not subject to sampling error, and they cannot be calculated from a sample set of data.
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The restaurant at the top of a very tall building in Seattle rotates 1.08 revolutions every hour. Jamie sits 22.2 meters from the center of the restaurant near a window.(a1) Through how many radians does Jamie turn in 99 minutes? (exact) angle = rads Enter the exact answer; use pi for π.(a2) Now, report the answer accurate to 3 decimal places: (approximate) angle = rads(b1) How far does Jamie move in 99 minutes? (exact) distance = meters Enter the exact answer; use pi for π.(b2) Now, report the answer accurate to 1 decimal place: (approximate) distacne = meters
Step-by-step explanation:
a1) Through how many radians does Jamie turn in 99 minutes?
One revolution is equal to 2 * pi radians, so 1.08 revolutions is equal to 1.08 * 2 * pi radians.
In 99 minutes, the restaurant rotates for 99 / 60 = 1.65 hours.
Therefore, the angle Jamie turns through in 99 minutes is 1.65 * 1.08 * 2 * pi radians.
a2) Exact answer:
angle = 1.65 * 1.08 * 2 * pi radians
b1) Approximate answer (rounded to 3 decimal places):
angle = 11.045 radians
b2) How far does Jamie move in 99 minutes?
The distance Jamie moves can be calculated using the formula:
distance = angle * radius
where radius is Jamie's distance from the center of the restaurant, which is 22.2 meters.
b2) Exact answer:
distance = 11.045 * 22.2 meters
b2) Approximate answer (rounded to 1 decimal place):
distance = 245.3 meters
A file that is 281 megabytes is being downloaded. If the download is 16.3% complete, how many megaby nearest tenth.
Answer:
1723.9 mb
Step-by-step explanation:
Essentially, the question is asking "281 is 16.3% of what number.
Thus, we can find the percentage of a number using the formula
[tex]Px=y[/tex], where P is the percentage. In context of the question, x is how many megabytes have already downloaded and y is 281.
We simply need to solve for x and round to the nearest:
[tex]\frac{16.3}{100}x=281\\ \\0.163x=281\\x=1723.92638=1723.9[/tex]
A survey revealed that 80% of workers at a company were not satisfied with their job. If 96 workers selected this option, then how many total workers are at the company?
There is a total of 120 workers at the company
How many total workers are at the company?From the question, we have the following parameters that can be used in our computation:
80% of workers at a company were not satisfied with their job. 96 workers selected this optionUsing the above as a guide, we have the following:
Number of workers = 96/80%
Evaluate the quotient
Number of workers = 120
Hence, the workers are 120
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Consider the following equation:
x/x+8=−1/6
State any restriction(s) on the variable, if they exist.
The equation [tex]\frac{x}{x+8} = -\frac{1}{6}[/tex] is not defined at x = - 8.
What is the domain and range of a function?Suppose we have an ordered pair (x, y) then the domain of the function is the set of values of x and the range is the set of values of y for which x is defined.
Given, An equation [tex]\frac{x}{x+8} = -\frac{1}{6}[/tex].
We know the denominator of a rational expression can not be equal to zero.
Therefore, x + 8 ≠ 0 ⇒ x ≠ - 8.
So, The restriction of the expression is at - 8 and it is undefined at - 8.
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Michelle reads a book for the school Read-A-Thon. The table shows the proportional relationship between x, the number of minutes and y, the total number of pages read.
a. Determine the rates of change and explain its meaning in the context of this situation.
b. Write an equation to represent the total number of pages as it relates to the number of minutes read.
Answer: a. The rate of change in this situation represents the average number of pages read per minute. From the table, it can be seen that the rate of change is constant, as the ratio of the change in y (pages) to the change in x (minutes) is always the same.
For example, when x increases from 0 to 5, y increases from 0 to 25, so the rate of change is 25/5 = 5 pages per minute.
b. To represent the total number of pages as it relates to the number of minutes read, a linear equation can be used. The slope of the line represents the rate of change, and the y-intercept represents the number of pages read when x is equal to 0 (minutes).
Using the rate of change from the above example (5 pages per minute), the equation can be written as y = 5x + 0, where x represents the number of minutes and y represents the total number of pages read.
Step-by-step explanation:
create a data set. create a data set with five observations for which the median would change by a large amount if the largest observation were deleted.
The median of this data set is 30. If the largest observation (50) were deleted, the median would become 25, which is a 5 unit change.
Here's a data set with five observations for which the median would change significantly if the largest observation were deleted:
Observation 1: 20
Observation 2: 25
Observation 3: 30
Observation 4: 35
Observation 5: 50
The median of this data set is 30. If the largest observation (50) were deleted, the median would become 25, which is a 5 unit change. This is a significant change because the median is a measure of central tendency that shows the midpoint of a set of data and is sensitive to outliers. By removing the largest observation, the data set is no longer skewed towards larger values, and the median changes to reflect this.
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if you got 8 out of 17 questions right and they are worth 2 points each what did you make on the test
the test-taker made a score of 16 points on the test.
16 points
8 questions x 2 points per question = 16 points
The test consisted of 17 questions, each worth two points. By answering 8 of them correctly, the test-taker was able to earn 16 points. This score was acquired by multiplying the number of correct questions by the two points per question. Therefore, the test-taker made a score of 16 points on the test.
The test consisted of 17 multiple-choice questions, each worth two points. Each question contained four possible answers, one of which was the correct answer. By selecting the correct answer to 8 questions, the test-taker earned a total of 16 points. This score was calculated by multiplying the number of correct questions by the two points per question. Therefore, the test-taker achieved a score of 16 points on the test.
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Bryron has his own bakery. He bakes 84 cakes each week. How many cakes can he make in one day?
Answer:
12
Step-by-step explanation:
there are 7 days in a week so just simply divide 84 by 7 :)
Answer:
two plus two equals five
Step-by-step explanation:
1) 5x + 2y = 16
x + 8y = 26
Help pleaseee
a study of helicopter usage and patient survival, among the 56,142 patients transported by helicopter, 297 of them left the treatment center against medical advice, and the other 55,845 did not leave against medical adviceIf 40 of the subjects transported by helicopter are randomly selected without replacement, what is the probability that none of them left the treatment center against medical advice?
Answer:
P = C(55,845, 40) / C(56,142, 40) = (55,845!) / (40! * (55,845 - 40)!) / (56,142!) / (40! * (56,142 - 40)!)
Step-by-step explanation:
To find the probability that none of the 40 subjects randomly selected left the treatment center against medical advice, we can use the formula for combinations. The number of ways to choose 40 subjects out of 55,845 that did not leave against medical advice is given by C(55,845, 40), which can be calculated as:
C(55,845, 40) = 55,845 choose 40 = (55,845!) / (40! * (55,845 - 40)!)
The probability that none of the 40 subjects randomly selected left the treatment center against medical advice is given by the number of ways to choose 40 subjects out of 55,845 that did not leave against medical advice, divided by the number of ways to choose 40 subjects out of 56,142 total subjects:
P = C(55,845, 40) / C(56,142, 40) = (55,845!) / (40! * (55,845 - 40)!) / (56,142!) / (40! * (56,142 - 40)!)