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Sav [38]
3 years ago
10

What is the exact area of a semicircle with diameter of 28 inches?

Mathematics
2 answers:
Svetach [21]3 years ago
8 0

Answer:

98 pi inches ^2

Step-by-step explanation:

We know that the diameter is 28 inches

The radius is 1/2 diameter

r = 14 inches

Area of a circle is pi * r^2

A = pi r^2

   = pi (14)^2

  = 196 pi

A semi circle is 1/2 of a circle,so we take 1/2 the area

A semi circle = 1/2 A circle

                      = 1/2 (196 pi)

                       = 98 pi inches ^2

erastova [34]3 years ago
3 0
The answer is 307.72

(\pi \times {14}^{2} )/2
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Temporarily replace e^x with y.

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Now remembering that we temporarily replaced e^x with y, we let 
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3 years ago
Help<br> A number is the sum of 12.4 and 23.79, decreased by 5.27. What is the number?
Rudik [331]

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Step-by-step explanation:

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7 0
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Mama L [17]
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3 years ago
If f(x) = 5x-3, which expression represents its inverse function?
valentinak56 [21]

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Step-by-step explanation:

For inverse functions, I do the opposite operation

the only logical inverse function I see working in this expression would be C

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