Answer:
a = 3
Step-by-step explanation:
Collect like-terms:
[tex] - 16 = a - 19[/tex]
[tex]a = - 16 + 19[/tex]
[tex]a = 3[/tex]
Answer: 3
Step-by-step explanation: you take 19 from 3 giving you -16
HELP HELP HELP HELP HELP HELPHELP HELP HELPHELP HELP HELPHELP HELP HELPHELP HELP HELP PLS PLE PLS PLS PLs
The answers to the box plot are given as follow;
1) the highest level of snow fall was 50inches. This is the maximum value on the plot
2) The data is most concentrated in the 3rd quarter. More cities has snow fall closer to 40 inches than to 13 inches.
3) the data is most spread all over the 4th quarter.
1) As per the data depicted in a box plot, it can be inferred that no urban center witnesses snowfall exceeding 50 inches.
2) The highest point on this chart supports this observation.
Furthermore, an overwhelming number of cities seem to report moderate levels of snowfall between 13-40 inches as indicated by most of these values lying within that particular section.
To buttress my argument further, I would note how close to its top edge is located the median line for this section. It is apparent that the data exhibits the highest degree of variability during the final quarter, signifying the top 25% of values.
The elongated vertical line extending from the upper end of the box up to the maximum value, which reaches 50 inches, is considerably lengthier than its counterpart at the bottom concluding with a minimum value of 5 inches.
This suggests that there is a greater disparity among snowfall measurements among cities receiving copious amounts.
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How to find the scientific notation of this problem
Answer:
[tex](4 \times {10}^{4} ) \times (2.5 \times {10}^{6} )[/tex]
[tex] = 10 \times {10}^{10} = {10}^{11} [/tex]
You need to make 48 servings of mushroom gravy. Each serving takes .75 cups of brown stock. How many quarts of brown stock do you have to make
Using proportions, it is found that you need 900 quarts of brown stock to make the servings of mushroom gravy.
We know that;
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
Now, In this problem,
Each serving takes 75 cups of brown stock is,
= 75/4
= 18.75 quarts.
So, 48 servings will be made,
hence the number of quarts is given by:
n x Q = 48 x 18.75
= 900 quarts.
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Enter a positive value for d that makes this statement true: 34×d is less than 34 but greater than zero HELP PLSS FASTT
Answer:
0.5 (any number between 0 and 1)
Step-by-step explanation:
34 * 0.5 = 17
34 > 17 > 0
Which of the points is not one of the vertices (s, t) of the shaded region of the
set of inequalities shown below?
OA. (0,5)
OB. (0,20)
O C. (10,0)
OD. (0, 10)
s≤ 10-0.5t
825-t
s≤ 20-t
820
120
All the points of the vertices are in the shaded region
Which of the points is not one of the vertices (s, t) of the shaded regionFrom the question, we have the following parameters that can be used in our computation:
s ≤ 10 - 0.5t
s ≥ 5 - t
s ≤ 20 - t
s ≥ 0
t ≥ 0
Next, we plot the graphs of the above inequalities
In the graph, we can see that all the points are in the shaded region
Hence, none of the points is not one of the vertices (s, t) of the shaded region
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A parachutist's rate during a free fall reaches 165 feet per second. What is this rate in meters per second? At this rate, how many meters will the parachutist fall during 5 seconds of free fall? In your computations, assume that 1 meter is equal to 3.3 feet. Do not round your answers.
Rate: m/s
Distance fallen in 5 seconds: m
In 5 seconds of free fall at a speed of 165 feet per second, the parachute user will drop around 122.5 meters.
To convert feet per second (ft/s) to meters per second (m/s), we can use the following conversion factor:
1 m/s = 3.3 ft/s
Therefore, the parachutist's rate of 165 ft/s is equivalent to:
165 ft/s × (1 m/3.3 ft) = 50 m/s
Next, we can use the kinematic equation:
d = 1/2 * a * t²
Here d is the distance traveled (in meters), a is the acceleration due to gravity (9.8 m/s²), and t is the time (in seconds).
For 5 seconds of free fall, we have:
d = 1/2 * 9.8 m/s² * (5 s)² = 122.5 m
Therefore, the parachutist will fall approximately 122.5 meters during 5 seconds of free fall at a rate of 165 ft/s.
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Solve for the Diameter, X
The measure of the diameter x for the circle is 18.6 units.
A circle is a geometric shape consisting of all points in a plane that are equidistant from a fixed point called the centre. A circle is defined by its radius, which is the distance from the centre to any point on the circle, or by its diameter, which is the distance across the circle passing through the centre and connecting two points on the opposite sides of the circle.
The diameter of a circle is a line segment that passes through the centre of the circle and connects two points on the opposite sides of the circle. The diameter is twice the length of the radius of the circle, and it is often used to express the size or scale of the circle.
The diameter of the circle will be calculated as,
x = 2 ( 3.2 + 6.1)
x = 2 ( 9.3)
x = 18.6 units
Hence, the diameter is 18.6 units.
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Please help me with this
The volume of rectangular prism is 90 unit³.
We can consider the 1 block = 1 unit.
Length of prism = 5 unit
width of prism = 6 unit
Height of prism = 3 unit
So, Volume of rectangular prism
= l w h
= 5 x 6 x 3
= 90 unit³
Thus, the volume of rectangular prism is 90 unit³.
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The town manager of Greenville wants to survey tax-paying residents for their opinion regarding increasing real estate taxes in
support of improvements to the sports field park on the west side of town.
Which method results in a random sample of the population?
A)Ask everyone that enters the Town Hall over the course of one month to complete a survey until 100 surveys have been
completed.
B)Randomly select 100 parents of parents that play soccer for the town, using the town's list of players and a random
number generator.
C)Survey every 10th person entering a supermarket on the east side of town until 100 surveys have been completed.
D)Randomly select 100 residents paying real estate taxes, using the town's list of taxpayers and a random number
generator.
By selecting 100 inhabitants who pay real estate tax, using the town's list of taxpayers and a random number generator, Option D offers an arbitrary population sample.
Why is this a random sample of the population?This approach guarantees that each taxpayer has an equal likelihood of being chosen for the study, resulting in a diversified sample representation.
Conversely, the other options have possible biases or restrictions; like surveying solely soccer player's guardians might narrow it down to one particular group or only conducting them in designated areas could lead to misrepresentation within the frame of the entire general opinion poll.
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In 1999, the country of Monaco had a population of approximately 32,000 people. The area of the country is approximately 3/4 of a square mile. What was the approximate population density of Monaco in persons per square mile?
The approximate population density of Monaco in persons per square mile in 1999 was 42,666.67.
To calculate the population density of Monaco in persons per square mile, we need to divide the population of Monaco by the area of the country in square miles.
First, we need to convert the area of Monaco from square miles to square feet because the population figure is in persons per square mile.
1 square mile = 5280 feet × 5280 feet = 27,878,400 square feet
So, the area of Monaco in square feet is approximately:
(3/4) × 27,878,400 = 20,908,800 square feet
Now, we can calculate the population density in persons per square mile:
Population density = Population / Area
Population density = 32,000 / (20,908,800 / 27,878,400)
Population density = 32,000 / 0.75
Population density = 42,666.67 persons per square mile (rounded to two decimal places)
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Evaluate the function below it’s a given output value of 15
f(x)=60/3x+5
The input value that corresponds to an output value of 15 is x = -1/3.
Understanding functionTo find the input value (x) that corresponds to an output value of 15, we need to derive an equation:
15 = 60 / (3x + 5)
Multiplying both sides by (3x + 5), we get:
15(3x + 5) = 60
Expanding the left side, we get:
45x + 75 = 60
Subtracting 75 from both sides, we get:
45x = -15
Dividing both sides by 45, we get:
x = -1/3
Therefore, the input value that corresponds to an output value of 15 is x = -1/3.
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Jenny has $1200 in her savings account. If the bank pays 3% interest per year on savings, how much interest does she earn in one year?
Answer:
To find out how much interest Jenny earns in one year, we can use the formula:
interest = principal x rate x time
where:
the principal is the amount of money in the savings account
rate is the interest rate per year, expressed as a decimal
time is the length of time the money is in the account, in years
In this case, Jenny's principal is $1200, the rate is 3% or 0.03 as a decimal, and the time is 1 year. Plugging these values into the formula, we get:
interest = 1200 x 0.03 x 1
interest = $36
Therefore, Jenny earns $36 in interest in one year.
this is gonna be easy for some is can someone help with this please? hurry and try to make it sound a little simpler (zoom up to see)
The values of the products of the given fractions are 4 and 1 11/16.
Given are fractions we need to divide them,
We know that the in dividing the fraction we just flip the second fraction and change the sign of division by the sign of multiplication,
Here we will use the same concept,
1) 4/5 ÷ 1/5
Flipping the second fraction, and changing the sign of division by the sign of multiplication,
4/5 ÷ 1/5
= 4/5 × 5/1
= 20/5
= 4
Similarly,
2) 2 1/4 ÷ 1 1/3
Here the fractions are given in mixed form, firstly we will change them into proper fractions, then apply the same concept as above,
2 1/4 ÷ 1 1/3
= 9/4 ÷ 4/3
= 9/4 × 3/4
= 27/16
= 1 11/16
Hence the values of the products of the given fractions are 4 and 1 11/16.
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In XYZ, /Y=83°, XY =9, and XZ= 10. To the nearest tenth, what is /z?
The angle of Z is 63.2 degree.
Isosceles Triangle:The word isosceles comes from the Ancient Greek term isosceles which literally means "equal-legged." An isosceles triangle has two of its sides of equal length, which means that the angles opposite these sides would also be of equal measure.
In Triangle ΔXYZ,
∠Y = 83°, XY = 9 and XZ = 10
To find the angle of Z
Using Sine rule :- sine rule relates the sine of each angle to length of opposite side.
[tex]\frac{Sin A}{a} =\frac{SinB}{b} =\frac{SinC}{c}[/tex]
Where, A, B , C are the angles of the triangles and a, b, c are the side of the triangles
Then, Apply it:
[tex]\frac{Sin83}{10}=\frac{SinZ}{9}[/tex]
Using cross multiplication:-
Sin 83 × 9 = Sin Z × 10
Sin Z = (Sin 83 × 9)/10
Sin Z = 0.893
∠Z = [tex]Sin^-^1(0.893)[/tex]
∠Z = 63.2°
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Find the value of x
Answer:
Step-by-step explanation:5.7
Rhys takes out a loan of £200, which gathers
interest at a rate of 3% per year. How much
interest will he have to pay after the first year?
Rhys will have to pay £6 interest after the first year.
To calculate the interest, we can use the formula:
Interest = Principal x Rate
Where:
Principal = £200
Rate = 3% = 0.03 (in decimal form)
So, the interest Rhys will have to pay after the first year is:
Interest = £200 x 0.03 = £6
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do I mult if x(x+6) m?
The quadratic value equation of triangle area is solved and x = 12 m
Given data ,
Let the triangle be represented as ΔABC
Now , the height of the triangle is h = x m
The base of the triangle is = ( x + 6 ) m
Area of triangle = ( 1/2 ) base x height
A = 108 m² = ( 1/2 ) ( x ) ( x + 6 )
216 = x² + 6x
Subtracting 216 on both sides , we get
x² + 6x - 216 = 0
On factorizing the equation , we get
( x + 18 ) ( x - 12 ) = 0
So , the solution is x = 12 m
Hence , the height of the triangle x = 12 m
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simplify:2/x-1 -x/x^2+1 -1/x+1
To simplify the expression 2/(x-1) - x/(x^2+1) - 1/(x+1), we need to find a common denominator for all three terms.
The common denominator for the three terms is (x-1)(x^2+1)(x+1). We can rewrite each term using this denominator as follows:
2/(x-1) = 2*(x^2+1)*(x+1) / [(x-1)(x^2+1)(x+1)]
x/(x^2+1) = x*(x-1)*(x+1) / [(x-1)(x^2+1)(x+1)]
1/(x+1) = (x^2+1) / [(x-1)(x^2+1)(x+1)]
Now, we can combine the three terms by subtracting the second and third terms from the first, and simplify as follows:
2*(x^2+1)*(x+1) / [(x-1)(x^2+1)(x+1)] - x*(x-1)*(x+1) / [(x-1)(x^2+1)(x+1)] - (x^2+1) / [(x-1)(x^2+1)(x+1)]
= [2*(x^2+1)*(x+1) - x*(x-1)*(x+1) - (x^2+1)] / [(x-1)(x^2+1)(x+1)]
= [2x^3 + 2x - x^3 + x^2 - x^2 - 1] / [(x-1)(x^2+1)(x+1)]
= (x^3 + 2x - 1) / [(x-1)(x^2+1)(x+1)]
Therefore, the simplified expression is (x^3 + 2x - 1) / [(x-1)(x^2+1)(x+1)].
One jar of spaghetti sauce is made with 1/4 of a cup of tomatoes. How many full jars of spaghetti sauce can be made with 3 cups of tomatoes?
Answer:
you can make 12 cans of them
A cardboard box manufacturing company is building boxes with length represented by x + 1 width by 5-x and height by x-1
The volume of the cardboard box with given dimensions changes at the fastest average rate over the interval of option c. [1,5].
Length of the cardboard box = x + 1
Width of the cardboard box = 5 - x
Height of the cardboard box = x - 1
Volume of the box V (x) = length × width × height
Substitute the values we have,
V(x) = (x+1)(5-x)(x-1)
Expanding this expression gives,
V(x) = -x³ + 5x² + x - 5
To know where Volume is changing at the fastest average rate,
Find the maximum value of the absolute value of the derivative of V(x) over each of the given intervals.
Taking the derivative of V(x), we get,
V'(x) = -3x²+ 10x + 1
Taking the absolute value of this expression, we get,
|V'(x)| = 3x² - 10x - 1
Now, we can calculate the maximum value of |V'(x)| over each interval,
At [1,2]
|V'(1)| = 8
|V'(2)| = 9
[1,3.5]
|V'(1)| = 8
|V'(3.5)| = 0.75
[1,5]
|V'(1)| = 1
|V'(5)| = 24
[0,3.5]
|V'(0)| = 1
|V'(3.5)| = 0.75
The maximum value of |V'(x)| occurs on interval [1,5].
Therefore, the volume of the box is changing at the fastest average rate over the interval option c . [1,5].
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The above question is incomplete, the complete question is:
A cardboard box manufacturing company is building boxes with length represented by x + 1, width by 5 − x, and height by x − 1. the volume of the box is modeled by the function below. over which interval is the volume of the box changing at the fastest average rate?
a. [1,2]
b. [1,3.5]
c. [1,5]
d. [0,3.5]
Which statement about congruent arcs is false?
OA. They have the same measure.
B. They are on the same circle or on congruent circles.
C. Their associated chords are perpendicular.
OD. Their associated central angles are congruent.
Answer: Letter C
Step-by-step explanation:
In the same circle, or in congruent circles, two minor arcs are congruent if and only if their corresponding chords are congruent.
Since c is saying that congruent arcs associated with chords are perpendicular its wrong.
NEED HELP FAST HOMEWORK
The practical use of the confidence interval will be C. The confidence interval can be used to estimate that, with 90% confidence, the interval from true mean DNA base of all people
How to calculate the confidence intervalCI = 2.7 ± 1.645 * (1.0801/√10) ≈ (1.4, 4.0)
Therefore, the 90% confidence interval for the population mean µ is (1.4, 4.0).
The efficacy of confidence intervals lies in their aptitude to determine the probable range of values wherein the authentic populace mean probably resides, with a provided level of assurance. Consequently, we can assert with 90% sureness that the true population mean of DNA bases are likely to rest between 1.4 and 4.0.
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Three corners of a rectangular city block are located at (2,2), (2,-4) and (-5,-4) on a coordinate plane. What are the coordinates of the fourth corner
Answer:
(-11,8)
Step-by-step explanation:
To find the coordinates of the fourth corner of the rectangular city block, we need to use the fact that opposite sides of a rectangle are parallel and equal in length.
Let's start by finding the length of one of the sides of the rectangle. We can use the distance formula for that:
d = sqrt((x2 - x1)^2 + (y2 - y1)^2)
For example, if we want to find the length of the side between (2,2) and (2,-4), we have:
d = sqrt((2 - 2)^2 + (-4 - 2)^2) = sqrt(6^2) = 6
We can also see from the given coordinates that the sides of the rectangle are parallel to the x or y axis, which means that their lengths are simply the difference between the corresponding x or y coordinates.
So now we know that the length of the sides of the rectangle are both 6 units. The missing corner must be positioned 6 units away from the given point (-5,-4) along the x-axis, since the fourth side of the rectangle is parallel to the x-axis. Therefore, its x-coordinate is -5 - 6 = -11.
Similarly, the fourth corner must be positioned 6 units away from the given point (2,2) along the y-axis, since the fourth side of the rectangle is parallel to the y-axis. Therefore, its y-coordinate is 2 + 6 = 8.
Therefore, the coordinates of the fourth corner are (-11, 8).
5x-y=1/4 write in slope-intercept form
The slope intercept form of the given equation is,
y = 5x - 1/4
Given an equation of a line as,
5x - y = 1/4
We have to write the equation of the line in slope intercept form.
Equation of the line in slope intercept form is,
y = mx + c
Here m is the slope and c is the y intercept.
Rearranging the given equation,
5x = y + 1/4
5x - 1/4 = y
or,
y = 5x - 1/4
Hence the slope intercept form is y = 5x - 1/4.
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To rent a certain meeting room, a college charges a reservation fee of $18 and an dditional fee of $4 per hour the chemistry club wants to spend less than $50 on renting the room. possible number of hour the chemistry club could rent the meeting room?
use t for the number of hours.
write your answer as an inequality. solved for t
t < 8 is the inequality to solve the variable "t" as per the given data.
The cost C (in dollars) of renting the room for t hours can be expressed as:
C(t) = 4t + 18
To spend less than $50, we can set up an inequality:
C(t) < 50
Substituting the expression for C(t), we have:
4t + 18 < 50
Subtracting 18 from both sides, we get:
4t < 32
Dividing both sides by 4, we obtain:
t < 8
Therefore, the chemistry club could rent the meeting room for any number of hours less than 8 in order to spend less than $50.
The inequality solved for t is:
t < 8
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1 pound = 1.20
Euros
If one pound 1.2 euros then 14 pounds is 21 euros.
A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity
Given that 1 pound is 1.2 euros
We have to find 14 pounds in euros
To do this we just need to multiply 14 with 1.2
14×1.5
21 euros
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A randomized study compared the effectiveness of two
different flea collars for dogs. The dogs in the treatment
group using Flea Collar A had a mean of 2.8 fleas. The dogs
in the treatment group using Flea Collar B had a mean of 3.3
fleas.
To determine if the results are significant, the data are
rerandomized and the differences of the means are shown in
the dot plot
What is the best conclusion to make based on the data?
AThe difference of the means is not significant
because the rerandomizations show that it is
outside the range of what could happen by
chance.
B)The difference of the means is significant
because the rerandomizations show that it is
outside the range of what could happen by
chance.
C)The difference of the means is significant
o because the rerandomizations show that it is
within the range of what could happen by chance.
D)The difference of the means is not significant
O because the rerandomizations show that it is
within the range of what could happen by chance.
Difference of Means
The best conclusion to make based on the data is B The difference of the means is significant because the rerandomizations show that it is outside the range of what could happen by chance.
How to explain the informationGiven the details and dot plot, option B) is considered to be the most beneficial conclusion. This would imply that the difference between the means of fleas for two various treatment groups is not merely due to happenstance and is in fact statistically noteworthy.
Examining the randomizations further confirms that this deviation lies out of the expected parameter based on mere chance.
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Please help. This is due and I don't know how to solve it.
Answer:for the one in the middle, that one is 5.0, for the one in the top, that one is 7, and for the bottom one, that one is 50
Step-by-step explanation:
PLEASE HELP
Label all the following values of the box and whisker plot:
You may label the graph or write the approximate values.
Answer:
A= 7
B= 4
C= 10
D= 0
E= 13
answers in attachment below
What is the surface area of the cone?
Answer:
V=1/3*pi*radius(to the power of two)*height
Answer: 14 in squared