Name:    Chapter 9 Pre Test

Multiple Choice
Identify the choice that best completes the statement or answers the question.

1.

Find the positive and negative square roots of , if possible. Do not use a calculator.
 a. b. c. d. e. ,

2.

Find the positive and negative square roots of , if possible. Reduce the fraction, if needed. Do not use a calculator.
 a. b. c. d. e.

3.

Find the principal square root of , if possible. Do not use a calculator.
 a. b. c. d. e. no real roots

4.

Use a calculator to approximate . Round your answer to three decimal places.
 a. b. c. d. e.

5.

A stream of water moving at the rate of v feet per second can carry particles of size inches. Find the particle size (in inches) that can be carried by a stream flowing at the rate of foot per second. Round your answer to two decimal places.
 a. inch b. inch c. inch d. inch e. inch

6.

Use the formula to find the length of the side s of a square whose area is square inches. Round your answer to two decimal places.
 a. b. c. d. e.

7.

 a. b. c. d. e.

8.

 a. b. c. d. e.

9.

Rationalize the denominator of the expression and simplify.
 a. b. c. d. e.

10.

Rationalize the denominator and simplify the expression .
 a. b. c. d. e.

11.

Simplify the expression .
 a. b. c. d. e.

12.

Simplify the expression .
 a. b. c. d. e.

13.

Multiply and simplify the expression .
 a. b. c. d. e.

14.

Rationalize the denominator of and simplify.
 a. b. c. d. e.

15.

Rewrite as a single fraction and rationalize the denominator.
 a. b. c. d. e.

16.

Enter the number in your calculator and repeatedly take the square root. What number does the display appear to be approaching?
 a. b. c. d. e. The display is not approaching a number.

17.

Determine which value of x is a solution of  .
 a. b. c. d. e.

18.

Find the distance between and . Round your answer to two decimal places.
 a. b. c. d. e.

19.

Use the equation for the velocity of a free-falling object where v is measured in feet per second, feet per second squared, and h is height in feet to estimate the height from which the object was dropped if it strikes the ground with a velocity of feet per second. Round your answer to two decimal places.
 a. feet b. feet c. feet d. feet e. feet

20.

The demand equation for a video game is where x is the number of units demanded per day and p is the price per game. Find the demand when the price is set at . Round your answer to the nearest integer.
 a. units per day b. units per day c. units per day d. units per day e. units per day