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nikklg [1K]
4 years ago
11

1) A 30-ft. ladder leans against a wall so that the base of the ladder

Mathematics
1 answer:
navik [9.2K]4 years ago
5 0

Answer:

A) 70.5

Step-by-step explanation:

cos x = adjacent side/ hypotenuse

cos x = 10/ 30

cos x = 0.3

cos 70 = 0.3420

cos 71 = 0.3256

x = 70.5

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A circle with radius of 3 cm sits inside a circle with radius of 11 cm. What is the area of the shaded region? Round your final
Liono4ka [1.6K]

You answer is 4.7

Explanation

I assume that the shaded region is the area inside of rectangle and outside the circle  

so

The shaded region is equal to the area of rectangle minus the area of circle

step 1

Find the area of rectangle

The area of rectangle is equal to multiply the length by the width

A= (3)-(11)=33 cm^2

tep 2

Find the area of the circle

The area of the circle is

A=\pi r^{2}

we have

r=3\ cm

\pi =3.14

substitute

A=(3.14)(3^{2})

A=28.26\ cm^{2}

step 3

Find the area of the shaded region

33-28.26=4.74\ cm^{2}

I hope this helps you and Please hit the braninslist answer thank You!

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3 years ago
Giving brainliest! show some work too tysm !
Brilliant_brown [7]

Answer:

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3 years ago
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