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loris [4]
2 years ago
12

HELPPPPPPPPPPP! PLEASE ILL GIVE 20 POINTS AND BRAINLIEST!

Mathematics
2 answers:
meriva2 years ago
8 0

Explanation:

The perimeter of the track is the two circumferences of the semicircles (when combined, they form one circle, so we can just find the circumference of the circle) added to the lengths of the rectangle (

160

meters).

To find the circumference of the circle, we need to know the diameter.

Circumference of a circle:

d

π

or

2

r

π

, where

d

represents diameter and

r

represents radius

The diameter of the circle happens to be the same as the width of the rectangle. We know that the area of a rectangle is found by multiplying its length by its width. We know that the area is

14400

and that its length is

160

.

Width: area divided by length

14400

160

=

90

The diameter of the circle and the width of the rectangle is

90

meters.

Circumference:

90

⋅

π

=

90

π

→

If you are using an approximation such as 3.14 for

π

, multiply that by 90

Add

160

⋅

2

to the circumference since the lengths of the rectangle are also part of the perimeter.

160

⋅

2

=

320

90

π

+

320

i hope it helps you ok please mark ❣️ me as brainlist

rosijanka [135]2 years ago
4 0

Answer:

we have to multiple pie and area of rectangle

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Answer:

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Step-by-step explanation:

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2 years ago
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Elenna [48]

Answer:

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4 0
3 years ago
Can someone please help me? :)
Dimas [21]
Answer: is C. 30,000
8 0
3 years ago
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Randy and Carla like to walk the path
Maksim231197 [3]
<h3>Answer:  18 miles</h3>

Reason:

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Carla walked the path 22 times, so she walked a total of 2*22 = 44 miles.

The difference of those results is 44-26 = 18 miles.

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2*22 - 2*13 = 18

or you could say

2*(22-13) = 18

8 0
2 years ago
Add. 7/4+9/-5 wrote your answer as a fraction in simplest form
IgorLugansk [536]

Answer:

7/4 + 9/-5 =

Since the denominator of the second fraction is negative the sign will change from negative to positive

We will get

7/4 - 9/5

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7/4 - 9/5 = 5(7) - 4(9)/ 20

Simplify

We get

35 - 36/20

= -1/20

Hope this helps

5 0
3 years ago
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