Applied Calculus for the Managerial, Life, and Social Sciences A Brief Approach - Complete Test test bank - exam questions - quizzes (updated 2022)

Tan.ApplCalcBrf9-ch01sec01




TRUE/FALSE




1.


ANS: F PTS: 1



2. Suppose and are real numbers other than zero and that . State whether the inequality is
true or false.




ANS: F PTS: 1



3. Determine whether the statement below is true for all real numbers b.



|b + 8| = |b| + 8


ANS: F PTS: 1



4. If a > b, then a - c < b - c.


ANS: F PTS: 1




MULTIPLE CHOICE

,1. A manufacturer of a certain commodity has estimated that her profit in thousands of dollars is
given by the expression




where x (in thousands) is the number of units produced.



What production range will enable the manufacturer to realize a profit of at least $18,000 on the
commodity?



a. Between 4,000 and 9,000 units.

b. Between 4,000 and 6,000 units.

c. Between 1,000 and 6,000 units.

d. Between 1,000 and 8,000 units.

e. Between 1,000 and 9,000 units.


ANS: C PTS: 1



2. Rationalize the numerator of the expression.




a.

, b.



c.



d.



e.




ANS: D PTS: 1



3. Rationalize the denominator of the expression.




a.



b.



c.



d.



e.

, ANS: C PTS: 1




4. Use the fact that to evaluate the expression without using a calculator.




a. 3.162

b. 31.62

c. 3,162

d. 31,620

e. 316,200


ANS: C PTS: 1




5. Use the fact that to evaluate the expression without using a calculator.




a.

b.

c.

d.

e.