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ElenaW [278]
2 years ago
8

Please help me in this

Mathematics
1 answer:
Ivahew [28]2 years ago
4 0

The answer is A. 2 and 4

Reason:

To formula for circumference is 2 x r x pi

2 x 2 = 4, 2 x 4 = 8and 4 + 8 = 12

Area is r ^2 x pi

2 ^2 = 4, 4^2 = 16 and 4 + 16 = 20

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pete got 7 items wrong out of 50 on a test. what fraction of the total number of problems did Pete get wrong?
Luba_88 [7]
7/50 would be the answer

4 0
3 years ago
Week 6<br> Please answer with clear instructions so that i can apply this to other questions
Crazy boy [7]

Answer:

4

Step-by-step explanation:

Gradient is the same as slope to get your answer follow this formula y2 - y1 divided x2 -x1 in this problem it will look like this

4 - (-4) /1  - (-1) =

8 / 2 =

= 4

I hope this helps!!

3 0
2 years ago
What is the area of the pool?
IRISSAK [1]
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4 0
3 years ago
(a) The position of a particle at time t is s(t) = t^3 + t. Compute the average velocity over the time interval [7, 12].(b) Esti
ryzh [129]

Answer:

<h2>a) Average velocity = 278 units</h2><h2>b) Instantaneous velocity at t = 7 seconds is 148 units</h2>

Step-by-step explanation:

a) Average velocity is the ratio of displacement to time.

   We have

              s(t) = t³ + t

    t is in between 7 and 12

             s(7) =  7³ + 7 = 350

              s(12) = 12³ + 12 = 1740

    Displacement = 1740 - 350 = 1390

   Time = 12 - 7 = 5

  Displacement =  Average velocity x time

  1390 = Average velocity x 5

  Average velocity = 278 units

b) s(t) = t³ + t

   Differentiating

         v(t) = 3t² + 1

  At t = 7

          v(t) = 3 x 7² + 1 = 148 units

  Instantaneous velocity at t = 7 seconds is 148 units

8 0
3 years ago
Hellppp im so stuck
77julia77 [94]

35= 5,000

45=15,000

55=50,000

3 0
3 years ago
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