3 years ago

a solid of sphere of radius 'r' is melted and recast into the shape of a solid cone of height 'r,' .find the radius of cone

1 answer:

3 0

Vol of sphere =4/3πr³
let the radius of cone be x.
vol of cone =1/3πx²h
when h=r, =1/3πrx²
since they have the same volume,
4/3πr³=1/3πrx²
4πr³=πrx²
x²=4r²
x=2r (radius)

You might be interested in

What is the surface area of the cylinder? Express the answer in terms of Pi?

jeyben [28]

Answer:

A≈552.92cm²

Step-by-step explanation:

mark me as brainliest!!!

§ALEX§

8 0

3 years ago

Read 2 more answers

Jon rented a car a company that charged a daily rental fee and a mileage charge. He rented the car for 6 days and drove 400 mile

Anon25 [30]

The answer is 66 miles per mile !

7 0

1 year ago

Does x^2+y^2=169 define y as a function of x

klemol [59]

$x^2+y^2=169$
$y^2=169 -x^2$
$y= \sqrt{ 169 -x^2}$
$f(x)= \sqrt{ 169 -x^2}$

3 0

3 years ago

Is -1/11 terminating or repeating

777dan777 [17]

Answer:

Repeating

Step-by-step explanation:

-1/11 = -0.0909090909.....

3 0

2 years ago

Calculate the value of the following factorial expressions.

never [62]

Answer:

(a) 7

(b) 5040

(d) 132

Step-by-step explanation:

We have to calculate the value of given expression

(a) $\frac{7!}{6!}$

$\frac{7!}{6!}=\frac{7\times 6!}{6!}=7$

(b) $\frac{10!}{6!}=\frac{10\times 9\times 8\times 7\times 6!}{6!}=10\times 9\times 8\times 7=5040$

(d) $\frac{12!}{10!}=\frac{ 12\times 11\times 10!}{10!!}= 12\times 11=132$

6 0

2 years ago