Question

Evaluate. (2a−13) ÷ b15 when a = −45 and b = −2.25. Enter your answer as a simplified mixed number in the box.

A) 9 1/3
B) −9 1/3
C) −8 2/3
D) 8 2/3

Answer 1

The expression (2a−13) ÷ b15, when a = −45 and b = −2.25, evaluates to 3 1/3.

Step-by-step explanation:

To evaluate the expression (2a−13) ÷ b15 when a = −45 and b = −2.25, we substitute the given values for a and b into the expression.

So, we have (2(-45)−13) ÷ (-2.25)15.

Simplifying further, we get (-90-13) ÷ (-33.75) which is equal to -103 ÷ (-33.75).

Dividing -103 by -33.75 gives the simplified mixed number as 3 1/3.

Therefore, the correct answer is

A) 3 1/3