Download Math 1420 Homework 10

Math 1420 Homework 10
Name:
Directions: Show all work for complete credit. The questions are also in your textbook. This test is
work a total of 10 points towards your final grade.
Section 4.1
1. Problem 54:
Use the compound interest formulas: A = P (1 + 1r )nt and A = P ert to solve. Find the accumulated value of an investmentof $5000 for10 years at an interest rate of 6.4 % if the money
is:
(a) compounded semiannually
(b) coumpouned quarterly
(c) coumpounded monthly
(d) compouned continuously
2. Problem 56:
Suppose that you have $6,000 to invest. Which investment yields the greater return over 4
years: 8.25% coumpounded quarterly or 8.3% comoounded seminannually?
Section 4.2
3. Problem 4:
Write the equivalent equation in exponential form.
2 = log9 x
4. Problem 8:
Write the equivalent equation in exponential form.
log5 125 = y
5. Problem 22:
Evaluate the expression without using a calculator. Show work.
log7 49