Question 1

Solve the problem.
-The area of a circle is found by the equation   If the area A of a certain circle is   squarecentimeters, find its radius r.

Accepted Answer

A) 6 cm 
B)    
C)    
D)    
A) 6 cm 
B)    
C)    
D)

Question 2

Solve the equation in the complex number system.
-

Accepted Answer

A) {-5, 5, -5i, 5i} 
B) {-5, 5} 
C) {5} 
D) {-5, 5, 5i} 
A) {-5, 5, -5i, 5i} 
B) {-5, 5} 
C) {5} 
D) {-5, 5, 5i}

Question 3

Write the word or phrase that best completes each statement or answers the question.
-A circular pool measures 16 feet across. One cubic yard of concrete is to be used to create a circular borderof uniform width around the pool. If the border is to have a depth of 1 inch, how wide will the border be?Use 3.14 to approximate π. Express your solution rounded to two decimal places. (1 cubic yard = 27 cubicfeet)

Accepted Answer

A) 4.93 ft 
B) 15.48 ft 
C) 5.69 ft 
D) 10.78 ft 
A) 4.93 ft 
B) 15.48 ft 
C) 5.69 ft 
D) 10.78 ft

Question 4

Solve the problem.
-BJ can overhaul a boatʹs diesel inboard engine in 15 hours. His apprentice takes 30 hours to do the samejob. How long would it take them working together assuming no gain or loss in efficiency?

Accepted Answer

A) 10 hr 
B) 4 hr 
C) 45 hr 
D) 6 hr 
A) 10 hr 
B) 4 hr 
C) 45 hr 
D) 6 hr

Question 5

Write the expression in the standard form a + bi.
-

Accepted Answer

A) 0 
B) 1 
C) i 
D) -1 
A) 0 
B) 1 
C) i 
D) -1

Solve the problem. -The area of a circle is found by the equation If the area A of a certain circle is squarecentimeters, find its radius r.

Solve the equation in the complex number system. -

Solve the problem. -BJ can overhaul a boatʹs diesel inboard engine in 15 hours. His apprentice takes 30 hours to do the samejob. How long would it take them working together assuming no gain or loss in efficiency?

Write the expression in the standard form a + bi. -

Graphs

Functions and Their Graphs

Linear and Quadratic Functions

Polynomial and Rational Functions

Exponential and Logarithmic Functions

Analytic Geometry

Systems of Equations and Inequalities

Sequences; Induction; the Binomial Theorem

Counting and Probability

Graphing Utilities

Filters

Exam 1: Equations and Inequalities