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12345 [234]
2 years ago
9

C What is the volume of the sphere? Choose the best answer below.

Mathematics
1 answer:
timofeeve [1]2 years ago
8 0

Answer:

3053.63 in^3

Step-by-step explanation:

The equation for the volume of a sphere is

Volume = \frac{4}{3}* \pi * Radius^2

The radius of the sphere is given to us as 9 inches.

V = \frac{4}{3} * \pi * (9 in)^3\\\\= 3053.63 in^3

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A rectangle has a perimeter 60m and base21 m what is its area
Komok [63]

Since you're given the base for the perimeter of the rectangle, you can solve this question quickly.

First, you multiply 21 by 2, because there are two bases to a rectangle.

You'll get 42, and you will have to do 60-42 to find the perimeter for the remaining two sides.

60-42 will give you 18, so you can divide that by 2 because there are two other sides, giving you 9.

Now you have the side lengths 21 and 9. Area is base*height, so you can multiply 21*9 and get 189.

Therefore, the area of the rectangle is 189 meters

5 0
3 years ago
. In a study about the relationship between the age of a person and the preference for digital vs analog watches, which of the f
Daniel [21]

Answer:

B and the first d and second one.

Step-by-step explanation:

The age is a big factor and b can showing the preference per age

6 0
3 years ago
what is the algebraic equation product of 3 and a squared number is twice the sum of the number and 4
Katyanochek1 [597]
Let n = number

" product of 3 and a squared number" translates to 3n²

"sum of the number and 4" translates to n + 4

The word "is" becomes your equals sign. 

3n² = n + 4 is your equation. 
6 0
3 years ago
Create the equation of a line that is perpendicular to 2y=14+(2/3) x and passes through the point (-2,8).
anzhelika [568]

Answer:

  y = -3x +2

Step-by-step explanation:

If you divide the equation for the given line by 2, it will be in slope-intercept form:

  y = (1/3)x +7

This tells you its slope is 1/3. The slope of the perpendicular line is the negative reciprocal of this: -1/(1/3) = -3. The point-slope form of the equation for the perpendicular line can be written as ...

  y = m(x -h) +k . . . . . line with slope m through point (h, k)

Your line is ...

  y = -3(x -(-2)) +8

  y = -3x +2

6 0
2 years ago
Expand the expression and combine like terms:<br> 20(−1.5r+0.75)
PtichkaEL [24]
20( -1.5r + 0.75)
Multiply everything by 20

= -30r + 15
4 0
3 years ago
Read 2 more answers
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