(square root of 72) = square root of (36 times 2)
That's the same as (square root of 36) times (square root of 2).
But the square root of 36 is 6 .
So the square root of 72 is (6) times (square root of 2) .
Answer:21
Step-by-step explanation:
The kid makes 7 dollars an hour.
7*2=14
7*3=21
7*5=35
Answer:
(-4, -5)
Step-by-step explanation:
-4x + 2y = 6
-4x + 2(x - 1) = 6
-4x + 2x - 2 = 6
-2x - 2 = 6
-2x - 2 + 2 = 6 + 2
-2x = 8
-2x/-2 = 8/-2
x = -4
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y = x - 1
y = -4 - 1
y = -5
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-4(-4) + 2(-5) = 6
16 + -10 = 6
6 = 6
8 and .25 are rational numbers because integers are negative and whole numbers don't include decimals and rational numbers can include whole number like 8 or 8/1 and .25.