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2 years ago

The height of a right cylinder is 3 times the radius of the base. The volume of the cylinder is 242 cubic units.

Mathematics

1 answer:

enyata [817]2 years ago

6 0

Correct question:

The height of a right cylinder is 3 times the radius of the base. The volume of the cylinder is 242 cubic units.

Answer:

6 units

Step-by-step explanation:

Let, radius, r = x

Height, h = 3x

Volume, V = 24π

Volume of cylinder = =πr²h

24π = π * x² * 3x

24π = π* 3x³

24 = 3x³

24 / 3= x³

8 = x³

x = 2

Height, h = 3x

h = 3(2) = 6 units

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Dmitriy789 [7]

Answer:

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a = -4, b = -3 and c = 6

Step-by-step explanation:

$x^{2} +8x = 38$

Add 16 to both sides.

$x^{2} +8x+16 = 38 + 16$

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$x + 4 = \sqrt{54}$ or $x + 4 = -\sqrt{54}$

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Step-by-step explanation:

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3 years ago

Emily and Kylie are 140 miles apart, traveling towards each other. If Kylie travels 12 mph and Emily travels 8 mph how long unti

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Step-by-step explanation:

Given

Distance between Emily and Kylie is $140\ \text{miles}$

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2 years ago

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Answer:

The correct length is 34 feet.

Step-by-step explanation:

Let us assume that the wall created is a rectangle ABCD as shown in the attached image.

We know that opposite sides of a rectangle are equal.

Perimeter of a closed figure is calculated by adding all the sides of the figure.

Here, from the figure, the perimeter is : AB + BC + CD + DA

AB and CD are equal to length.

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So,

$Perimeter = 2 \times (length + width) ....... (1)$

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