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zysi [14]
3 years ago
15

Find the area of the figure to the nearest tenth.

Mathematics
1 answer:
jenyasd209 [6]3 years ago
3 0

Answer:

99.0 in²

Step-by-step explanation:

The area (A) of the sector of the circle is calculated as

A = area of circle × fraction of circle

  = πr² × \frac{140}{360} ( where r is the radius )

Here r = 9, thus

A = π × 9² × \frac{14}{36}

   = 81π × \frac{14}{36} ≈ 99.0 in²

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Each side of a square is increased by 3 inches. The perimeter of the new square is 40 inches more than twice the length of the s
RUDIKE [14]

Length of side of new square is 17 inches

Step-by-step explanation:

  • Step 1: Let the length of the side of the old square be x. Then length of side of new square = x + 3 and Perimeter of new square = 40 + 2x

Perimeter of a square = 4 × side

⇒ 4(x + 3) = 40 + 2x

⇒ 4x + 12 = 40 + 2x

⇒ 2x = 28

⇒ x = 14 inches

  • Step 2: Find length of side of the new square

⇒ x + 3 = 17 inches

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storchak [24]
150 + 15x = 400
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3 years ago
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48+49+50+51+...112+113
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Step-by-step explanation:

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3 years ago
Volume (to the nearest tenth)
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Answer:

913

Step-by-step explanation:

cylinder:

radius=5.6 height=7

first lets find the volume of the cylinder the formula for the volume of a cylinder is pi times radius squared times height. so after plugging in the height and radius you get 689.64242

cone:

radius=5.6 height=6.8

now the volume of the cone, the formula for the volume of a cone is pi times radius squared times height/3. so after plugging in the height and radius of the cone you get 223.31278

so 689.64242 + 223.31278= 912.9552 and that rounded to the nearest tenth is 913

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