review sheet - Name: ________________________ Class:...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Name: ________________________ Class: ___________________ Date: __________ ID: A 1 Review for Chapter 8 Test Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. An initial population of 505 quail increases at an annual rate of 23%. Write an exponential function to model the quail population. a. f ( x ) = 505(0.23) x c. f ( x ) = 505(23) x b. f ( x ) = 505 0.23 ( ) x d. f ( x ) = 505(1.23) x ____ 2. The half-life of a certain radioactive material is 85 days. An initial amount of the material has a mass of 801 kg. Write an exponential function that models the decay of this material. Find how much radioactive material remains after 10 days. Round your answer to the nearest thousandth. a. y = 1 2 1 801 1 85 x ; 0.228 kg c. y = 801 1 2 1 85 x ; 738.273 kg b. y = 801 1 2 85 x ; 0 kg d. y = 2 1 801 1 85 x ; 0.911 kg ____ 3. Suppose you invest $1600 at an annual interest rate of 4.6% compounded continuously. How much will you have in the account after 4 years? a. $800.26 b. $6,701.28 c. $10,138.07 d. $1,923.23 ____ 4. How much money invested at 5% compounded continuously for 3 years will yield $820? a. $952.70 b. $818.84 c. $780.01 d. $705.78 Write the equation in logarithmic form. ____ 5. 6 4 = 1, 296 a. log 6 1, 296 = 4 c. log 1, 296 = 4 6 b. log 1, 296 = 4 d. log 4 1, 296 = 6 ____ 6. 125 4 3 = 625 a. log 4 3 625 = 125 c. log 125 625 = 4 3 b. 3 log 4 625 = 125 d. log 625 125 = 3 4 Evaluate the logarithm. ____ 7. log 5 1 625 a. 3 b. 5 c. 4 d. 4 ____ 8. log 3 243 a. 5 b. 5 c. 4 d. 3 ____ 9. log 0.01 a. 10 b. 2 c. 2 d. 10 Name: ________________________ ID: A 2 ____ 10. Write the equation log 32 8 = 3 5 in exponential form. a. 32 3 5 = 8 b. 8 3 5 = 32 c. 3 5 32 = 8 d. 8 5 3 = 32 Write the expression as a single logarithm. ____ 11. 5 log b q + 2 log b y a. log b ( q 5 y 2 ) c. log b q 5 + y 2 b. 5 + 2 ( ) log b q + y d. log b qy 5 + 2 ____ 12. log 3 4- log 3 2 a. log 3 2 b. log 3 2 c. log 2 d. log 2 ____ 13. 4 log x- 6 log ( x + 2) a. 24 log x x + 2 c. log x ( x + 2) 24 b. log x 4 ( x + 2) 6 d. none of these Expand the logarithmic expression. ____ 14. log 7 n 2 a. log 7 n- log 7 2 c. log 7 2- log 7 n b. log 7 n log 7 2 d.- n log 7 2 ____ 15. log 3 11 p 3 a. log 3 11 3 log 3 p c. log 3 11 + 3 log 3 p b. log 3 11- 3 log 3 p d. 11 log 3 p 3 ____ 16. log b 57 74 a. 1 2 log b 57 + 1 2 log b 74 c. log b 57- log b 74 b....
View Full Document

This note was uploaded on 05/13/2011 for the course MTH 98 taught by Professor Johnson during the Fall '09 term at Grand Valley State University.

Page1 / 13

review sheet - Name: ________________________ Class:...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online