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Triss [41]
3 years ago
8

A poll agency reports that 27 % of teenagers aged 12-17 own smartphones. A random sample of 85 teenagers is drawn. Round your an

swers to at least four decimal places as needed.
Mathematics
1 answer:
Paladinen [302]3 years ago
6 0

Answer:

Mean = цр = 0.27

Step-by-step explanation:

Note: The full question is attached as picture below

Given that,  p = 27 = 0.27  and n = 85

цр = P

Mean = цр = 0.27

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A store sells the basic model of a phone for $60 and the upgraded model for $200. It costs the store $10 to buy each basic model
ivolga24 [154]

Answer:

6

Step-by-step explanation:

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5 0
2 years ago
A typical lap around a track in the United States has length of 440 yards. How many lap would need to be complete to run a mile?
g100num [7]

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3 0
3 years ago
Write the equation, show all your work, and circle your answer. ** The
notsponge [240]

Answer:

The length of the triangle is 3x given

The no of sides is 3x 3x 3x so 3x+3x+3x= 180

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3 0
3 years ago
A circular quilt is made from 113.04 square feet of fabric. How much trim is needed to go around it’s edge?
erik [133]

Hey there!

We are looking for the circumference of the circle, which is the distance around it. We are given the area, which is the radius squared times pi.

First, we need to undo the area to find our radius.

113.04/3.14=36

We square root this to find the radius.

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Our radius is six. To find the circumference, we need to multiply the diameter by pi. The diameter is twice the radius.

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Therefore, we will need 37.68 feet of trim to around the edge of the quilt.

I hope this helps!

6 0
3 years ago
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