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3 years ago

Find the area of the semicircle.

Mathematics

1 answer:

Oliga [24]3 years ago

7 0

So since this is half a circle, we have to divide the area of a circle by 2. So that would give us 1/2 pi* r^2. We find the radius by dividing 10 by 2. So the radius is 5. Plugging that in for r in 1/2(pi)(r^2) we get 1/2(pi)(5^2) which is 25pi/2. Turning pi into 3.14 we have (25(3.14))/2 which is 78.5/2 which is approximately 39.25 units^2

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Alex17521 [72]

Answer:

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Step-by-step explanation:

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3 years ago

The ratio of the number of cars to the number of motorcycles in a parking lot is 10 : 3. The ratio of the number of motorcycles

Harman [31]

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3 years ago

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Aleks [24]

Answer:

(2, 4)

Step-by-step explanation:

When plotting points you need to do the x first then the y,

To help you remember the order use the saying OVER AND UP.

For the x-axis is the line going from SIDE to SIDE,

For the y-axis is the line going UP to DOWN,

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Therefore your coordinates/ordered pair is (2, 4).

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2 years ago

(4 + 7)<img src="https://tex.z-dn.net/?f=%5E%7B2%7D" id="TexFormula1" title="^{2}" alt="^{2}" align="absmiddle" class="latex-for

leonid [27]

Step-by-step explanation:

(4+7)^2=11^2=121

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3 years ago

Read 2 more answers

Simplify 3 ∙ 2x. What is the coefficient? x 2 6 3

siniylev [52]

Answer:

Step-by-step explanation:

Coefficients are always the number being multiplied by (or attached to) the variable, which is shown by a letter

so in 2x, 2 is the coefficient, and x is the variable

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2 years ago