Answer:
Square each number: 1 , 2 , 3 , 4 , 5:
1² = 1 * 1 = 1
2² = 2 * 2 = 4
3² = 3 * 3 = 9
4² = 4 * 4 = 16
5² = 5 * 5 = 25
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Answer:
15.1 gallons are needed to shut off the alarm.
A^2 + b^2 = c^2
4^2 + b^2 = 10^2
16 + b^2 = 100
b^2 = 100 - 16
b^2 = 84
b = SqrRt 84 = 9.2 <- Correct answer!