Evaluate the expression 7s^2 if s = 4

Answer 1

To evaluate the expression 7s^2 when s = 4, we substitute the value of s into the expression.

So, 7s^2 becomes 7(4)^2.

Next, we simplify the expression inside the parentheses by performing the exponentiation.

4^2 = 4*4 = 16.

So now, the expression becomes 7(16).

Finally, we multiply 7 by 16 to get the final answer.

7 * 16 = 112.

Therefore, the value of 7s^2 when s = 4 is 112.