Approximate the number using a calculator. Round your answer to three decimal places.
-$\mathrm { e } ^ { - 2.1 }$
A) $0.122$
B) $- 5.708$
C) $- 0.122$
D) $0.422$

Question

Quizplus · Accepted Answer

Using a calculator, we get approximately 0.122002086, which rounded to three decimal places is 0.122. Therefore, the best choice is A. Choices B, C, and D are incorrect as they all involve negative values, which is not possible for $\mathrm { e } ^ { - 2.1 }$ as it is a positive exponential expression.

Approximate the Number Using a Calculator e−2.1\mathrm { e } ^ { - 2.1 }e−2.1

Approximate the Number Using a Calculator $\mathrm { e } ^ { - 2.1 }$