Solution:
Given:

when a = 4, substitute for a in the expression;

Therefore, if (a = 4), then

Hence, the answer is 16.
Answer:
In geometry, a hypotenuse is the longest side of a right-angled triangle, the side opposite the right angle. The length of the hypotenuse can be found using the Pythagorean theorem, which states that the square of the length of the hypotenuse equals the sum of the squares of the lengths of the other two sides.
Step-by-step explanation:
Answer:
The answer is 9.725
Step-by-step explanation:
We have been given the mixed fraction 
First we will concert this to improper fraction.

= 
Now we will divide this using long division or calculator and get the answer 9.725.
Answer:
D. x = -1.
Step-by-step explanation:
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