Step-by-step explanation:
<u>Formulas.</u>
Square: 
Square Pyramid: 
b = base.
Let's work on the square first.
<u>Substitute the Length, Width, and Height of the square into the formula:</u>
<u />
<u>Solve:</u>
<u />
Let's work on the square pyramid.
<u>Substitute 225 into the formula, and 9 (height):</u>
<u />
<u>Solve:</u>
<u />
<u />
<u>Add each volume:</u>
The total volume of the figure is 
.
<span>15 - 13(2x + 6) < 15 - 3(6x - 7)
15 - 26x - 78 < 15 - 18x + 21
-26x -63 < -18x + 36
-8x < 99
x > -99/8
or
x > - 12.375
</span>
A distribute the 5 is the first step
Answer:
10(x-3) is equivalent to 10x – 30
Step-by-step explanation:
<u>First you have to take everything of out the parentheses and then simplify if needed. </u>
- 10(x – 30) is not equivalent to 10x – 30 because, 10 times x is 10x, but 10 times 30 is 300. So, 10(x – 30) is not equivalent to 10x – 30.
- 10(x – 3) is equivalent to 10x – 30 because, 10 times x is 10x, and 10 times 3 is 30. So, 10(x – 3) is equivalent to 10x – 30.
- 10 + (x – 20) is not equivalent to 10x – 30 because, 10 minis 20 plus x are -10 + x. So, 10+(x – 20) is not equivalent to 10x – 30.
- 10(x – 20) is not equivalent to 10x – 30 because, 10 times x is 10x, but 10 times 20 is 200. So, 10(x – 20) is not equivalent to 10x – 30.
Answer: 10(x-3) is equivalent to 10x – 30
