Answer:

Step-by-step explanation:
Given equation is 
We need to find the value of 

Distribute
in the right-hand side

Add both sides 

Now, add both sides 

Divide both sides by 

So, 
Answer: 11
Step-by-step explanation:
The sum of 8 and 3
Sum is the same as addition.
Therefore, the equation is 8+3
Solve 8+3
8+3=11
2x³+18x²<span>-18x-162 =
2(</span>x³+9x²-9x-81)=
2(x²(x+9)-9(x+9))=
2(x²-9)(x+9)=
2(x+3)(x-3)(x+9)
Answer: k=3
Mixed numbers are greater than one. it wouldn't make sense for a mixed number to be less than one, because then it would just be a regular fraction.
you can only get a bigger number if you divide by a number less than one. that means you can't divide 15 by a mixed number and get a bigger number.
Answer:
radius: 12
Given the following:
Volume of sphere: 7,240
Formula of volume of sphere:
Volume = 4/3 π (radius)³
Find radius:
<u>change sides</u>
<u>simplify</u>
<u>cube root on both sides</u>
<u>simplify</u>