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3241004551 [841]
3 years ago
8

Solve the equation -

{5}" align="absmiddle" class="latex-formula"> +9=13. What is w?
Mathematics
1 answer:
Tatiana [17]3 years ago
5 0

Answer:

w = -20

Step-by-step explanation:

-\frac{w}{5} + 9 = 13

Shift the (+9) to the other side of the equation. (+9) will turn into (-9).

-\frac{w}{5} = 13 - 9

   = 4

Shift the (÷5) to the other side of the equation. (÷5) will turn into (×5).

-w = 4 × 5

    = 20

Multiply both sides of the equation by (-1) so that -w will turn into w.

w = (-1) × 20

w = -20

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A cylinder and a cone have the same radius and height. The volume of the cylinder is 639 ft ^3. what is the volume of the cone?
AURORKA [14]

The volume of the cone is: A. 213 ft³.

<h3>Volume of a Cylinder and a Cone</h3>
  • Volume of cylinder = πr²h.
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Given:

radius and height of both the cylinder and the cone are equal.

Volume of Cylinder = 639 ft³

Therefore:

πr²h = ⅓πr²h

This means that volume of cone would be ⅓ of the volume of the cylinder.

Volume of cone = ⅓(639) = 213 ft³

Therefore, the volume of the cone is: A. 213 ft³.

Learn more about volume of cone on:

brainly.com/question/13677400

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An oil tank has to be drained for maintenance. The tank is shaped like a cylinder that is 4 ft long with a diameter of 2.2 ft. S
gavmur [86]

Answer:

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Step-by-step explanation:

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Therefore, the volume of this cylinder is:

1.1^2\cdot 3.14\cdot 4=15.1976\:\mathrm{ft^3}, using \pi=3.14 as requested in the problem.

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\frac{15.1976}{1.5}=7.5988=\fbox{$8\:\mathrm{minutes}$} to empty the tank.

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3 years ago
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r-ruslan [8.4K]

Answer:

C

Step-by-step explanation:

This triangle has a right angle so it is right.

It also has three different sides so it is scalene.

C is the answer

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Step-by-step explanation:

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