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anzhelika [568]
3 years ago
7

Help,anyone can help me do quetion,I will mark brainlest.​

Mathematics
2 answers:
Nesterboy [21]3 years ago
8 0
A. 2
B1+b2/2 •h= A 10+x/2 •8= 48
B. 4

B1+b2/2 •h= A 2+7/2 •x= 18

Hope this helps!!
Serhud [2]3 years ago
5 0

Answer:

a)    x = 2

b)    x = 4

Step-by-step explanation:

a = (b₁ + b₂)/2 * h

----------------------------

a)

48 = (10 + x)/2 * 8

Divide both sides by 8

6 = (10 + x)/2

multiply both sides by 2

12 = 10 + x

Subtract 10 from both sides

2 = x

x = 2

---------------------------------

b)

18 = (7 + 2)/2 * x

18 = 4.5 * x

divide both sides by 4.5

4 = x

x = 4

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3 years ago
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So you can do 1/2 and then divide it by 1/8.

To divide by a fraction, multiply by its reciprocal.
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3 years ago
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5 0
3 years ago
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3. Here is a diagram of a softball field:
Crank

a. Length of the fence around the field = perimeter of quarter circle = 892.7 ft.

b. The area of the outfield is about 39,584 sq. ft..

<h3>What is the Perimeter of a Quarter Circle?</h3>

Perimeter of circle = 2πr

Perimeter of a quarter circle = 2r + 1/4(2πr).

a. The length of the fence around the field = perimeter of the quarter circle fence

= 2r + 1/4(2πr).

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Plug in the value

The length of the fence around the field = 2(250) + 1/4(2 × π × 250)

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b. Size of the outfield = area of the full field (quarter circle) - area of the infield (cicle)

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R = radius of the full field = 250 ft

r = radius of the infield = 110/2 = 55 ft

Plug in the values

Size of the outfield = 1/4(π × 250²) - π × 55²

= 49,087 - 9,503

= 39,584 sq. ft.

Learn more about perimeter of quarter circle on:

brainly.com/question/15976233

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