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Fynjy0 [20]
3 years ago
8

The height of a cone is two times its base diameter. What is the volume of the cone in terms of its base radius r?

Mathematics
1 answer:
nydimaria [60]3 years ago
5 0

Volume of the cone = (1/3) pi r^2 h

h = 2r  so substituting for h:-

V = (1/3) pi r^2 * 2r

V = (2/3) pi r^3

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Find each equation with the correct solution​
stepladder [879]

Answer:

15;9;-8

Step-by-step explanation:

1. 5/3x-3=2/3x+12

x=15 once you combine like terms

2. 5x+35-3x+12=7x+2

2x+47=7x+2

5x=45

x=9

3. 12x+20-3=9x-7

12x+17=9x-7

3x=-24

x=-8

3 0
2 years ago
ill in the missing numbers along the sides of the triangle so that it contains each of the numbers from through exactly once. ​
mihalych1998 [28]

Each side of the triangle should contain four numbers whose sum is 28.

3+5+9+11=28

3+10+8+7=28

11+6+9+7=28

The pain of numbers that can be used for A and B is [5,9] The pain of numbers that can be used for C and D is [10,8] and the pain of numbers that can be used for E and f is [6,4].

<h3>What are the 3 sides of a triangle?</h3>

The hypotenuse of a right triangle is its longest side; its "opposite" side is the one that faces the angle in question; and its "adjacent" side is the one that faces it. We use special terminology to define the sides of right triangles.

We use special terminology to define the sides of right triangles.

The side opposite the right angle is always the hypotenuse of a right triangle. It is the longest side in a right triangle.

The opposing and neighboring sides are the other two sides. The labels on these sides relate to an angle.

One side is across from another at a particular angle.

To learn more about sides of a triangle visit:

brainly.com/question/9449776

#SPJ4

5 0
1 year ago
The sum of reciprocals of rehman’s ages 3 years ago and 5 years from now is 1/3. Find his present age
Afina-wow [57]

Answer:

His age is 7 years.

Step-by-step explanation:

Let Rehman's  present age be x years.

1 / (x - 3) + 1 /(x + 5) = 1/3

Multiply through by the LCD 3(x - 3)(x + 5):

3(x + 5) + 3(x - 3) = (x + 5)(x - 3)

3x + 15 + 3x - 9 = x^2 + 2x - 15

x^2 + 2x - 6x - 30 + 9 = 0

x^2 - 4x - 21 = 0

(x - 7)(x + 3) = 0

x = 7  (answer).

6 0
3 years ago
Hello can you please help me posted picture of question
irina [24]
We are to form the combination of 6 objects taken 2 at a time. This can be expressed as 6C2

6C2= \frac{6!}{2!*4!} \\  \\ &#10;= \frac{6*5}{2} \\  \\ &#10;=15

This means, there can be 15 different combinations of 2 members that can sit in the front row.

So, the answer to this question is option A
6 0
3 years ago
Read 2 more answers
How many times can can 93 go into 784?
lyudmila [28]
784/ 93 = 8.43010752688
93 * <span>8.43010752688 = 784</span>

8 0
2 years ago
Read 2 more answers
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