Use a graphing calculator to graph the polar equation. Make sure that you choose a sufficiently large interval for the parameter so that the entire curve is drawn.r = 1 + 4 cos(?/4)
A. 
B. 
C. 
D. 
Answer: C
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You sell books, and the price you charge a single customer for each book depends on the number purchased. If a customer orders B books then you charge 
dollars for each book. You have to pay the wholesaler $162 for each book you sell.
? A: Write a formula that gives your income I, in dollars, if you sell B books. (For income, you do not consider the price you pay for each book.)B. Write a formula that gives your net profit P, in dollars, if you sell B books. (For net profit you must consider both income and cost.)C: What number of books sold will provide you with the most profit? What will be an ideal response?
Choose the most reasonable unit of measure.Weight of a quarter 11 
(mg, g, kg)
A. mg B. g C. kg
If a rock is thrown upward on the planet Mars with a velocity of , its height in meters t seconds later is given by 
Find the average velocity over the time interval [2, 3]. a. –0.6 m/s b. 4.4 m/s c. 2.4 m/s d. 3.4 m/s e. 1.4 m/s
Find the difference. Write the difference in lowest terms.11
- 8
A. 2
B. 19
C. 18
D. 2