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andreyandreev [35.5K]
3 years ago
11

If the area of a circle measures 16/25 π cm2, what is the circumference of the circle in terms of π? A) 5/8 π cm B) 4/5 π cm C)

8/5 π cm D) 32/50 π cm
Mathematics
1 answer:
xxTIMURxx [149]3 years ago
3 0
Area=pi*r^2
16/25 therefore is r^2
therefore r=4/5
circumference = 2*pi*r
8*pi/5 is the circumference, C.
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The perimeter of a rectangle is 52cm. The length is 12cm longer than the width. Find the dimensions.
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Don’t mind the problem above. Hope this helps

8 0
3 years ago
Please help will mark Brainly
SVETLANKA909090 [29]

Answer: C

Step-by-step explanation:

We are given the information that:

  1. The airplane is at 50,000 feet
  2. It descends 2,500 feet in 1 minute
  3. x = minutes

For  ease of solving this question, let's set the number of minutes (x) to 1.

  • In one minute, we know the plane will drop to 47,500 feet. (50,000 - 2,500(x))

There are multiple ways to write this equation bu shifting around negative and positive values. Another way to write this equation would be (-2,500(x) + 50,000). That would be choice C.

Try it out~

(-2,500(x) + 50,000)\\ (-2,500(1) + 50,000)\\ (-2,500 + 50,000)\\47,500

It works, so our answer is C.

5 0
4 years ago
Y is inversely proportional to x.<br> When =9, y = 8.<br> Find y when x= 6.
Furkat [3]

Answer:

y=12

Step-by-step explanation:

y is inversely proportional to x

y=k/x

k is a constant of proportionality

k=yx

y1x1=y2x2

8(9)=y2(6)

y2=8(9)/6

y2=12

6 0
3 years ago
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