3 years ago

A cone has a volume 7065in and a height of 30 in what is the radius of the cone?use 3.14 for pi

Mathematics

1 answer:

ASHA 777 [7]3 years ago

3 0

Answer:

15 inches.

Step-by-step explanation:

V = 1/3 pi r^2 h

7065 = 1/3 * 3.14 * 30 * r^2

r^2 = 7065 / (1/3 * 3.14 * 30)

r^2 = 7065 / 31.4 = 225

r = sqrt 225 = 15.

You might be interested in

Plz Help solve this…

irina [24]

Answer:

well i mean ur right who said were friends

Step-by-step explanation:

5 0

2 years ago

Which method could be used to factor 4x^2-50?

Natali [406]

Factor out the gcf
factor by grouping
perfect square trinomial
or
difference of squares
?

5 0

4 years ago

Hey y’all can y’all plz help me for brainliest

puteri [66]

Answer:

Step-by-step explanation:

6 0

3 years ago

NEED HELP ASAP!!!!!!!!!! Melissa rolls two number cubes, each with sides that are labeled 1 to 6. What is the probability that t

Masteriza [31]

Answer:

1\6

Step-by-step explanation:

You have one sixth

7 0

3 years ago

Read 2 more answers

4x^2-5x-15=0 how to find the vertex and y intercept

mezya [45]

$ax^2+bx+c=0\\\\the\ vertex:\left(\frac{-b}{2a};\frac{-(b^2-4ac)}{4a}\right)\\\\y-intrcept=c\\=======================================\\\\4x^2-5x-15=0\\\\a=4;\ b=-5;\ c=-15\\\\\frac{-b}{2a}=\frac{-(-5)}{2\cdot4}=\frac{5}{8};\ \frac{-(b^2-4ac)}{4a}=\frac{-[(-5)^2-4\cdot4\cdot(-15)]}{4\cdot4}=-\frac{265}{16}\\\\\boxed{the\ vertex:\left(\frac{5}{8};-\frac{265}{16}\right)}\\\\\boxed{y-intercept:-15}$

5 0

3 years ago