Just substitute x = 2 and y = 5 into the equation wherever you see x and y.
2 + (12 - 5x) · 2y
2 + (12 - 5(2)) · 2(5)
2 + (2) · 10
4 · 10
40, is the answer which should be the first box.
Answer:
<u>x=1
</u>
Step-by-step explanation:
5x-7=-10x+8
5x=−10x+8+7
5x=−10x+15
5x+10x=15
15x=15
<u>Answer:</u> <u>x=1
</u>
<u />
First we need to figures it how much centimeters is in the cylinder . The bottom is 20 centimeter meters and the side is 110 centimeters. Take out the zeros and do 11 x 2, that equals 22, then put the 2 zeros back in. So the cylinder has a mass of 2200 centimeters. We want to fill half of the cylinder, so divided 2200 by 2 and that is 1100 centimeters. And 1100 is the answer to this equation.
√52 -√13 +√117
= 2√13 -√13 +3√13
= 4√13 . . . . matches selection A
_____
√52 = √(4·13) = (√4)(√13) = 2√13
√117 = √(9·13) = (√9)(√13) = 3√13
