Find the value of a3 + 3b2 when a = 2 and b = -2

Given:

a = 2 and b = -2.

To find:

The value of .

Solution:

We need to find the value of expression at a = 2 and b = -2.

Substituting a = 2 and b=-2 in , we get

Therefore, the value of expression at a = 2 and b = -2 is 20.

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.