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kifflom [539]
3 years ago
8

The height of an oil tank (cylinder) is 13 yards and the diameter of its base measures 6 yards.Calculate the oil tank's total su

rface area.
Mathematics
1 answer:
OlgaM077 [116]3 years ago
7 0

Answer:

  96π yd² ≈ 301.6 yd²

Step-by-step explanation:

The total surface area of a cylinder, including flat circular top and bottom and curved lateral surface, is given by the formula ...

  S = 2πr² + 2πrh . . . . .  where r is the radius and h is the height

For a radius of 3 yards and a height of 13 yards, the area is ...

  S = 2π(3 yd)² + 2π(3 yd)(13 yd)

  S = 18π yd² + 78π yd²

  S = 96π yd² ≈ 301.6 yd²

The total surface area is about 301.6 square yards.

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Scott sets up a volleyball net in his backyard. One of the poles, which forms a right angle with the ground, is 12 feet high. To
Assoli18 [71]

Answer:

Length of the rope = 15.6 ft.

Step-by-step explanation:

Given:

Height of the pole from the ground = 12 ft

Adjacent distance from the pole = 10 ft

We have to find the length of the rope attached by Scott to secure the pole.

According to the question :

In forma  right angled triangle as shown in the figure.

We have to find the measure of the hypotenuse.

Length of rope = Hypotenuse measure

Let the length of the rope = "h" ft

Using Pythagoras formula.

⇒ (hypotenuse)=\sqrt{opposite^2+ adjacent^2}

⇒ Plugging the values.

⇒ h=\sqrt{12^2 + 10^2}

⇒ h=\sqrt{144 + 100}

⇒ h=\sqrt{244}

⇒ h=15.62 ft

The length of the rope, rounded to the nearest tenth is 15.6 ft.

6 0
3 years ago
The area of a square is 20 square which best represent the length of the side of the square
mote1985 [20]
5' per side or whatever units it's measured in, because 4x5=20
8 0
3 years ago
A basketball player made 44 out of 100 attempted free throws. What percent of free throws was made?
klemol [59]

Answer:

How much is 44 out of 100 written as a percentage? Convert fraction (ratio) 44 / 100 Answer: 44%

Step-by-step explanation:


5 0
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Fully explain the solution set to the equation below.<br> 1x = -1
Lady bird [3.3K]

Answer:

The answer for x should equal: -1.

Step-by-step explanation:

To find x, we would divide, our final value, by 1 to get x. In other words, you would divide: -1 ÷ 1 to get -1 as our unknown number.

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ANEK [815]

Answer: 0.75

Step-by-step explanation: To write a percent as a decimal, first remember that a percent is a ratio that compares a number to 100.

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Dividing by 100 moves the decimal point two places to the left so 75 ÷ 100 will move the decimal point two places to the left which would give us .75 or 0<em>.</em>75.

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