Subtract.-6 - (-6)
A. 6
B. 1
C. 0
D. -6
Answer: C
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Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = 
7
A. y = u7; u = 4x2 - 
- x; 
= 7
6
B. y = 4u2 - 
- u; u = x7; 
= 8x14 - 
- x7
C. y = u7; u = 4x2 - 
- x; 
= 7
6
D. y = u7; u = 4x2 - 
- x; 
= 7
6
Use a calculator to approximate the circular function value (rounded as indicated).sec 0.1232
(Round to three decimal places.)
A. 0.1238 B. 1.008 C. 0.1229 D. 0.9924
Solve the problem.You invested $34,000 and started a business writing greeting cards. Supplies cost 11¢ per card and you are selling each card for 75¢. Let x represent the number of cards produced and sold and write the profit function, P. More than how many cards must be produced and sold for you to make money?
A. P(x) = 64x - 34,000; more than 531 cards B. P(x) = 0.86x - 34,000; more than 39,535 cards C. P(x) = 0.64x - 34,000; more than 53,125 cards D. P(x) = 0.64x + 34,000; more than 53,125 cards
Solve the problem.A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 9% cement should he mix with 8 bags of 13% cement to produce a mix containing 11% cement?
A. 21 bags B. 16 bags C. 10 bags D. 8 bags