All categories

2 years ago

PLEASE HELP I'M BEING TIMED!!!!

Mathematics

2 answers:

Kryger [21]2 years ago

7 0

Answer:

Step-by-step explanation:

Helga [31]2 years ago

3 0

6.3
use the equation 4/3 *r^3 *pi for each, then find the difference

You might be interested in

If 9a+5b+5c=9 what is -10c-18a-10b?

Rus_ich [418]

9a + 5b + 5c = 9

Multiplying the whole equation by -2.

-18a - 10b - 10c = -18.

Hence, the answer is -18.

6 0

3 years ago

What is the surface area of cone below Diameter AB=21 and distance from B to C =36

Vesnalui [34]

Answer:

1533.88261311522

Step-by-step explanation:

Let r be the radius of the (base/circle)

and L be the slant height of the cone

Formula ………………………………………………………………………………………………………

The surface area of a cone = the (curved/lateral) surface area + the base

$=\pi r^{2}\ \ \ +\ \ \ \pi Lr$

=========================================

$r=\frac{21}{2} =10.5$

L = BC = 36

$\text{surface area} =\pi \left( 10.5\right)^{2} +\pi \times 36\times \left( 10.5\right)$

$=346.360590058275 + 1187.52202305694$

$=1533.88261311522$

6 0

1 year ago

The variable a varies inversely with b. The value of a is 2 when b = 40. Find the constant of variation (k). I will give brainli

Zinaida [17]

Answer:

1=20

Step-by-step explanation:

40 divided by 2 is 20 so

1=20

4 0

2 years ago

What is the value of f(3) in the function f(x)=5/6x+8

natita [175]

For this case we have a function of the form $y = f (x)$ , where $f (x) = \frac {5} {6} x + 8$

We must find the value of the function when $x = 3$ , that is, we must find f (3). So:

$f (3) = \frac {5} {6} (3) + 8\\f (3) = \frac {15} {6} +8\\f (3) = \frac {5} {2} +8\\f (3) = 2.5 + 8\\f (3) = 10.5$

So $f (3) = 10.5$

Answer:

$f (3) = 10.5$

3 0

3 years ago

Every member of the family gives a gift to every other member of the family. There are ten members this year. If there are just

Eva8 [605]

The statement is contradictory, because it is said that every member of the family gives a gift to every other member of the family. And from 10 members, there are just 2 exchanging. Anyway, maybe they are only 2 members exchanging the gifts at that point in time.
So, each member will exchange 9 gifts (that is 10 members total minus herself), and 2 members are exchanging gifts at that point, so 18 gifts are being exchanged.

7 0

3 years ago