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ahrayia [7]
2 years ago
13

Thirty seventh graders each took a random sample of 10 middle school students and asked each student whether or not he likes pop

music. Then, they calculated the proportion of students who like pop music for each sample. The dot plot below shows the distribution of the sample proportions.
Based on the dot plot, do you think the proportion of the middle school students at this school who like pop music is 0.5? Explain why or why not.
Question 1 options:
Mathematics
1 answer:
Anastaziya [24]2 years ago
6 0
The answer to th problem
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A drop of oil makes a circular ring in a water puddle. The radius of the oil ring expands at 1.5 cm per second. If r(t)=1.5t and
Readme [11.4K]

Answer:

a(t) =n(0.25t^2)

Step-by-step explanation:

Given

r(t) = 0.5t

a(r) = nr^2

Required

Determine the area in terms of time

From the question, we have:

r(t) = 0.5t -> radius per time

and

a(r) = nr^2 --> area from radius

The interpretation of the question is to find the composite function: a(t)

If a(r) = nr^2, and r(t) = 0.5t, the

Substitute 0.5t for r

a(t) =n(0.5t)^2

a(t) =n*0.25t^2

a(t) =n(0.25t^2)

5 0
2 years ago
The amount of profit, p, you earn by selling knives, k, can be determined by: p=200k-500 a) Determine the constraints on profit
Natalka [10]
We are given with the formula
p = 200k - 500
a) The constraint for this formula is obtained from the idea that the profit must be positive
200k - 500 > 0 
k > 500/200
k > 2.5
b) To make 14000 profit
 14000 = 200k - 500
k = 72.5 or 73 knives must be sold
3 0
3 years ago
LOTS OF POINTS, WILL MARK BRAINLIEST! pls show working!!!!!
sp2606 [1]

<em>Answer:</em> ΔTAU ≈ ΔUAV ≈ ΔTUV

<em>Step-by-step explanation:</em>

I'm not really sure what "work" you really need; this is a problem that can be solved easily by simply looking at the triangles and seeing which sides have the same ratio of distances for each side.

Best of luck with your assignment. :) Feel free to give me Brainliest if you feel this helped. Have a good day.

8 0
1 year ago
-2x -4 &lt; 10 solve for x
algol [13]

Answer:

the and is x>-7

Step-by-step explanation:

collect like time

-2x<10+4

-2x<14

x>14/-2

x>-7

7 0
3 years ago
HELP PLS THIS IS HARD
aleksley [76]

Answer:

quadrilateral EFGH is reflected about the x-axis

4 0
2 years ago
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