College Algebra MA 240 Online Exam 5

College Algebra MA 240 Online Exam 5.Question 1 of 40 2.5/ 2.5 Points Approximate the following using a calculator; round your answer to three decimal places. e -0.95  A. .483  B. 1.287  C. .597  D. .387 Question 2 of 40 2.5/ 2.5 Points Find the domain of following logarithmic function. f(x) = ln (x - 2)2 33768 Online Exam 5_05 College Algebra MA 240  A. (∞, 2) ∪ (-2, -∞)  B. (-∞, 2) ∪ (2, ∞)  C. (-∞, 1) ∪ (3, ∞)  D. (2, -∞) ∪ (2, ∞) Question 3 of 40 2.5/ 2.5 Points Solve the following exponential equation. Express the solution set in terms of natural logarithms or common logarithms to a decimal approximation, of two decimal places, for the solution. 3 2x + 3x - 2 = 0  A. {1}  B. {-2} College Algebra MA 240  C. {5}  D. {0} Question 4 of 40 2.5/ 2.5 Points Write the following equation in its equivalent exponential form. 4 = log2 16  A. 2 log4 = 16  B. 22 = 4  C. 44 = 256  D. 24 = 16 College Algebra MA 240 Question 5 of 40 2.5/ 2.5 Points The exponential function f with base b is defined by f(x) = __________, b 0 and b ≠ 1. Using interval notation, the domain of this function is __________ and the range is __________.  A. bx; (∞, -∞); (1, ∞)  B. bx; (-∞, -∞); (2, ∞)  C. bx; (-∞, ∞); (0, ∞)  D. bx; (-∞, -∞); (-1, ∞) Question 6 of 40 2.5/ 2.5 Points Use properties of logarithms to expand the following logarithmic expression as much as possible. logb (x2 y)  A. 2 logy x + logx y College Algebra MA 240  B. 2 logb x + logb y  C. logx - logb y  D. logb x – logx y Question 7 of 40 2.5/ 2.5 Points You have $10,000 to invest. One bank pays 5% interest compounded quarterly and a second bank pays 4.5% interest compounded monthly. Use the formula for compound interest to write a function for the balance in each bank at any time t