Answer:
√250
Step-by-step explanation:
9^2 (81) plus 13^2 (169) is √250. √250 cannot be reduced.
Answer: 14.51 gallons i think.
Step-by-step explanation: add them
Solving
by completing a square gives 
Step-by-step explanation:
We need to solve the equation
by completing a square
The completing a square method requires: 
Solving:

We need to add and subtract (4)^2=16 to make the equation a complete square

So, Solving
by completing a square gives 
Keywords: Solve by completing a square
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Answer:
D
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
Use the Pythagorean theorem, a² + b² = c², where a and b are legs of the right triangle and c is the hypotenuse.