Factor completely.14x2 - 49x - 28
A. (14x - 7)(x + 4)
B. (2x - 1)(7x + 28)
C. 7(2x - 1)(x + 4)
D. 7(2x + 1)(x - 4)
Answer: D
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Express the integrand as a sum of partial fractions and evaluate the integral.
A. 27 ln
+ 
- 
+ C
B. 
- 9x + 9 ln
- 
+ C
C. 
- 9x - 27 ln
+ 
+ C
D. 
- 9x + 27 ln
+ 
+ C
Answer the question or complete the sentence to make a true statement.The sum of a negative number and 0 will always be a number.
A. Positive B. Negative
Solve the problem.Regrind, Inc. regrinds used typewriter platens. The variable cost per platen is $1.50. The total cost to regrind 90 platens is $400. Find the linear cost function to regrind platens. If reground platens sell for $8.00 each, how many must be reground and sold to break even?
A. C(x) = 1.50x + 265; 28 platens B. C(x) = 1.50x + 265; 41 platens C. C(x) = 1.50x + 400; 62 platens D. C(x) = 1.50x + 400; 43 platens
Solve.As the relative humidity increases, the temperature seems higher than it is. The formula T = 0.100x + 77.98 approximates the apparent temperature for an actual temperature of 
where x is the relative humidity percentage. What is the apparent temperature (to the nearest degree) for an actual temperature of 85°F and a relative humidity of 40%?
A. 82°F B. 78°F C. 118°F D. 312°F