√72 = √4 * √18 = 2√18. Therefore her answer is incorrect.
√72 = √4 * √9 * √2 = 6√2.
Since √2 is approximately 1.41,
6 * 1.41 = 8.46 = 8.5 (nearest tenth).
We don't know because we can't see it
Assume the longer piece is x feet long,
Then the other piece is 0.5x feet long
In total: x + 0.5x = 66 -> x = 44
So the longer piece is 44 feet, shorter piece is 22 feet
Answer:
......................
7(x+3)
Step-by-step explanation:
....
Answer:
E(h) = 0.04h
Step-by-step explanation:
Total usage is the product of usage per hour and the number of hours:
E(h) = 0.04h
