3 years ago

The formula for the volume of a sphere is v=4/3πr³ find the radius, to the nearest hundredth, of a sphere with a volume of 15in³

Mathematics

1 answer:

melisa1 [442]3 years ago

7 0

15 = 4/3 pi r^3
45 = 4 pi r^3
11.25 = pi r^3
r^3 = 3.580986
r = 1.89 inches

You might be interested in

Find the missing value so that the line passing through the points has the given slope.

liberstina [14]

Answer:

Step-by-step explanation:

( $x_{1}$ , $y_{1}$ )

( $x_{2}$ , $y_{2}$ )

m = $\frac{y_{2} -y_{1} }{x_{2} -x_{1} }$

~~~~~~~~~

(7, 1)

(x, 4)

m = $\frac{3}{4}$

$\frac{4-1}{x-7}$ = $\frac{3}{4}$

x - 7 = 4

<em>x = 11</em>

7 0

3 years ago

Which of the following is a coefficient in -11x + 9m + 7? There may be more

andreyandreev [35.5K]

Answer: -11 & 9

Step-by-step explanation: Coefficients are the numbers before the variables.

7 0

3 years ago

Angles a and b in both angles sets are ?

Alex17521 [72]

Answer:

1) b = 60°

2) a = 90°, b = 90°

Step-by-step explanation:

1) Angles on a straight line add to 180° so 180 - 120 is 60°

2) The two lines are perpendicular (meet at right angles) so both angles are 90°

Hope this helps!

8 0

3 years ago

The formula d = rt gives the distance traveled in time t at rate r. A bicyclist rides at a constant rate of 15 miles per hour. H

Inga [223]

D=rt
distance = rate*time
rate=15mph
time=3.5hours
distance = 15*3.5 = 52.5
He will travel 52.5 miles in 3.5 hours assuming his rate does not change.

6 0

3 years ago

PLEASE HELP ON 25! ASAP!!

andreyandreev [35.5K]

??????????????????????????????????????????

7 0

3 years ago