Question

Evaluate when x=3 and y=7 . five times the square of y, less the sum of x and 9

Answer 1

To evaluate the expression 5(y^2) - (x + 9) when x=3 and y=7, substitute the values of x and y into the expression. Calculate each part of the expression separately and then subtract the result of the sum from the result of squaring y.

Step-by-step explanation:

To evaluate the expression when x=3 and y=7, we substitute the values of x and y into the expression. The expression is given as:

5(y^2) - (x + 9)

Substituting x=3 and y=7, we have:

5(7^2) - (3 + 9)

Calculating the values within the parentheses first, we have:

5(49) - 12

Multiplying, we get:

245 - 12

Finally, subtracting, we have:

233