3 years ago

HURRY PLEASE!

1 answer:

4 0

The answer is B.
apex

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hoa [83]

Answer:

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Shtirlitz [24]

Answer: y=3x^2+3x-3

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3 years ago

sineoko [7]

Answer:

138.16 square feet

Step-by-step explanation:

The surface area of the cylinder consists of one rectangle and two circles.

1. The radius of the circle is 4 ft, then the area of the circle is

$A_{circle}=\pi r^2 =\pi \cdot 4^2 =16\pi \ ft^2$

2. The width of the rectangle is 1.5 ft, the length of the rectangle is the circumference of the circle.

Find the circumference:

$C=2\pi r=2\pi \cdot 4=8\pi \ ft$

Hence,

$A_{rectangle}=1.5\cdot 8\pi =12\pi \ ft^2$

3. The surface area of the cylinder is

$SA=2A_{circle}+A_{rectangle}=\\ \\=2\cdot 16\pi +12\pi =32\pi +12\pi =44\pi \approx \\ \\\approx 44\cdot 3.14=138.16\ ft^2$

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3 years ago

Umnica [9.8K]

Answer: 360ft

Explanation:
x = 18/1/20
x = 18 x 20
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2 years ago

kramer

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Step-by-step explanation:

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2 years ago