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exis [7]
2 years ago
5

Find the area of the semicircle. Round your answer to the nearest hundredth.

Mathematics
2 answers:
masya89 [10]2 years ago
6 0

Answer:

177.475 inches^{2}

Step-by-step explanation:

Since the formula for finding the area of a <u>full</u> circle is A = πr^{2}, area equals pi times radius squared, we fill out the formula and solve.

A: unknown

Pi: 3.14

Radius: diameter is 12, so you divide it by 2, which is 6.

A = 3.14 x 6 squared.

using pemdas, you do exponents first,

A = 3.14 x 36

A ≈ 113.04

Now that we have the area for the full circle, we divide it by two to find the area of the semicircle,

113.04/2

= 56.52

So, the area of the semicircle is 56.52 inches^{2}

This is my 3rd answer as a helper, I hope it helped!

Neporo4naja [7]2 years ago
4 0

Answer:

56.52

Step-by-step explanation:

This is because in order to find an area of a circle you must do R^2*3.14 and since it is a semicircle add /2 so R^2*3.14/2 and since half of 12 is 6, 6*6 is 36 and 36*3.14 is 113.04 and divide that by 2 which is 56.52

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The length of a rectangular garden is three feet less than twice it’s width. If the perimeter of the garden is 42 feet, what is
Masja [62]

Answer:

The length of a rectangular garden is: 13 feet

Step-by-step explanation:

You have 2 lengths that are 2x-3 feet, and 2 widths that are x.

2x-3 + 2x-3 +x +x =42 feet

4x -6 +2x -42 feet

6x -6 = 42 feet

6x = 48 feet

x = 8 feet (so, 2x-3 = 16-3 = 13 feet)

3 0
3 years ago
Earth is approximately 9.3 × 107 miles from the sun. Saturn is approximately 8.87 × 108 miles from the sun. About how much farth
Nastasia [14]

Answer:

Both distances are in the scientific notation:

Earth - Sun = 9.3 * 10^7 miles

Saturn - Sun = 8.87 * 10^8 miles

8.87 * 10^8 - 9.3 * 10^7 =

= 88.7 *10^7 - 9.3 * 10^7 =

= 79.4 * 10^7 = 7.94 * 10 ^8 = 794,000,000 miles

Answer: Saturn is  7.94 * 10^8 miles farther from Sun than Earth is.

Step-by-step explanation:

I hope this helps you :)

-KeairaDickson

7 0
2 years ago
I NEEED HELP!!!!!<br> find the equation of the line containing (5, -2) and has a slope of -1
mojhsa [17]
I think it is y=-5x+12
8 0
2 years ago
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What is the solution to this inequality? x - 8 &gt; -3 A. X&gt;-11 B. X&lt;-11 C. X&lt;5 D. X&gt;5
erik [133]

Answer

D. X>5

Step by step explanation

x - 8 > -3

Here we have to find the value of x.

Add 8 on both sides, we get

x - 8 + 8 > -3 + 8

x > 5

Thank you.

4 0
3 years ago
Which number is relatively prime to 63?<br> A. 114<br> B. 99<br> C. 87<br> D. 25
ElenaW [278]

Answer:

The answer is 114 which is the first answer which is A

Step-by-step explanation:

The rest 99, 87, and 25 just dont

Hope this helps you

7 1
3 years ago
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