What is the value of 1/3x to the second power + 5.2y when x = 3 and y = 2?

12.4
13.4
14.4
16.4

Question

What is the value of 1/3x to the second power + 5.2y when x = 3 and y = 2?

12.4
 13.4
 14.4
 16.4

mathstudent55 · Answer

You mean this problem?

Evaluate $\dfrac{1}{3}x^2 + 5.2y $ for $x = 3$ and $y = 2$.

mathstudent55 · Answer

The first step is to write the expression with x replaced by 3 and y replaced by 2.

$\dfrac{1}{3}x^2 + 5.2y =$

$ =\dfrac{1}{3}(3^2) + 5.2(2)$

Can you evaluate that expression?
Remember PEMDAS, the order of operations.

mathstudent55 · Answer

$\dfrac{1}{3} \times 3^2 + 5.2 \times 2$

$ = \dfrac{1}{3} \times 9 + 10.4$

$= 3 + 10.4$

$= 13.4$