Question

Simplify the following:

$[{(-0.4)+(4.6)^2+(2.3)^2}\div5]-3.24$

• A. 1.79
• B. 1.93
• C. 1.39
• D. 1.97

Answer 1

Answer:

D. 1.97

Let's simplify the expression step by step:

1. Calculate the squares:

   • (4.6)^2 = 21.16

   • (2.3)^2 = 5.29

2. Substitute the squares back into the expression:

   • [(-0.4) + 21.16 + 5.29] / 5 - 3.24

3. Calculate the sum inside the brackets:

   • -0.4 + 21.16 + 5.29 = 26.05

4. Divide by 5:

   • 26.05 / 5 = 5.21

5. Subtract 3.24:

   • 5.21 - 3.24 = 1.97

Therefore, the simplified value of the expression is 1.97.