Chapter 5 - Exponential and Logarithmic Functions - 5.3 Exponential Functions - 5.3 Assess Your Understanding - Page 280: 15

a)$\approx8.815$ b)$\approx8.821$ c)$\approx8.824$ d)$\approx8.825$

We calculate them by using a calculator and then round them to the first 3 decimal digits. a)$2^{3.14}\approx8.815$ b)$2^{3.141}\approx8.821$ c)$2^{3.1415}\approx8.824$ d)$2^{\pi}\approx8.825$