Question

Help! Due today!! 18 • 3 ÷ 5^2(4 - 9) • 2

Answer 1

Answer:

-21.6

Step-by-step explanation:

Let's go over the order of operations.

P - parentheses

E - exponents

M - multiplication

D - division

A - addition

S - subtraction

That means we need to start with the parentheses.

18 • 3 ÷ 5^2(4 - 9) • 2

4 - 9 = -5

Our expression becomes 18 • 3 ÷ 5^2 • -5 • 2.

The next step in the order of operations is exponents.

18 • 3 ÷ 5^2 • -5 • 2

5^2 = 25

Our expression becomes 18 • 3 ÷ 25 • -5 • 2.

The next step in the order of operations is multiplication and division from left to right.

18 • 3 ÷ 25 • -5 • 2

18 • 3 = 54

54 ÷ 25 • -5 • 2

54 ÷ 25 = 2.16

2.16 • -5 • 2

2.16 • -5 = -10.8

-10.8 • 2

-10.8 • 2 = -21.6

That gives us an answer of -21.6.