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3 years ago

Question Is Above

Mathematics

1 answer:

Margaret [11]3 years ago

5 0

Diameter=16 so divide by 2 to find radius
16/2=8=r

area of circle= pi*r^2

area of circle= pi*8^2

area of circle=64pi

now either leave it as an exact answer (64pi u^2) or convert it to a decimal and then round

201.06192983

round to nearest tenth= 201.1 u^2
or round to the nearest hundreth=201.06 u^2

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Find the area of the shaded regions:

Crank

First, we'll find the area of the large section, including the smaller section that is white.

Area of a circle: pi x r^2

A = pi x 7^2

A = 49pi x 120/360

A = 49/3 pi cm^2

Now, we'll find the area of the small section.

A = pi x 3^2

A = 9 pi x 120/360

A = 3pi cm^2

All that's left to do now is subtract.

49/3 pi - 3 pi

40/3 pi cm^2

(or 13 1/3 = 13.33 cm^2)

Hope this helps!

6 0

3 years ago

Plz help! Detailed explanation, please!! Thank You!

Irina-Kira [14]

Answer:

Step-by-step explanation:

since the 4 is a triangle you must divide the 4 by 2 to get 2 then add 2 to 10 to get 12 and multiply 12 by 6 to get 72. Make sense?

6 0

3 years ago

50 pounds to 35 pounds percentage of change

iVinArrow [24]

Answer:

30%

Step-by-step explanation:

<h2><u>Percentage change </u></h2><h3>formula :</h3>

$\frac{change}{origional} * 100$

= 50 - 35 = 15

= $\frac{15}{50}*100\\$

4 0

4 years ago

88÷6080 use campatible numbers to find two estimates

Shalnov [3]

69 idk if I got this right

4 0

4 years ago

Which is the length of the hypotenuse of the right triangle? Round your answer to the nearest tenth of a centimeter. Hint: Pytha

jonny [76]

Answer:

$c =\sqrt{a^{2}+b^{2} }$

Step-by-step explanation:

You clear c, wich is the hypotenuse

$c =\sqrt{a^{2}+b^{2} }$

8 0

4 years ago

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