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rosijanka [135]
2 years ago
10

What is the surface area of the cylinder

Mathematics
1 answer:
Hitman42 [59]2 years ago
5 0

Answer:

In terms of pi: 164.5pi cm squared

Substituting pi for 3.14: 516.53 cm squared

Step-by-step explanation:

3.5^2 = 12.25pi

12.25*2 = 24.5pi

7pi*20 = 140pi

140 + 24.5 = 164.5pi

164.5*3.14 = 516.53

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7x+3+5x²
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In your own words, describe how you would use construction tools to construct a perpendicular to a line. Explain as if you were
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The map below shows the length of a proposed land bridge at Phil Hardberger Park. The length of the land bridge is represented b
Tamiku [17]

Answer:

A; the actual length of the land bridge from P to H is 50 yards

Step-by-step explanation:

Here in this case, given the coordinates of P and H, we want to calculate the actual length of the distance between the two points.

Mathematically, to calculate this distance, we make use of the distance formula;

D = √(x2-x1)^2 + (y2-y1)^2

In this case, (x1,y1) = (2,55) while (x2,y2) = (32,15)

Substituting these values

D = √(32-2)^2 + (15-55)^2

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Now, we know that each units represent 1 yard, thus 50 units will represent 50 * 1 = 50 yards

8 0
3 years ago
A 70-ft ladder is mounted 10 ft above the ground on a fire truck. The bottom of the ladder is 40
riadik2000 [5.3K]

\text{Hello there!}\\\\\text{Use the Pythagorean theorem first:}\\\\a^2+b^2=c^2\\\\\text{Plug 70 to c since it's your hypotenuse and plug 40 to a}\\\\40^2+b^2=70^2\\\\\text{Solve for b:}\\\\40^2+b^2=70^2\\\\1600+b^2=4900\\\\\text{Subtract 1600 from both sides}\\\\b^2=3300\\\\\text{Square root}\\\\b=57.4456\\\\\text{Round to the nearest tenth}\\\\57.4\\\\\text{Add 10 to 55.4 because the ladder is 10 ft off the ground}\\\\67.4\\\\\boxed{\text{Answer: about 67.4 ft}}

3 0
3 years ago
1.25 is what percent of 112
leonid [27]

Answer:

1.25 is approximately 1.16% of 112.

Step-by-step explanation:

1.25 ÷ 112 = 0.011160714285714 = 1.1160714285714%

4 0
3 years ago
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