Find the length of the curve.The curve r = a cos2 
, 0 ? ? ? ?, a > 0
A. 
B. 2a
C. 
D. 2?a
Answer: B
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Solve the problem.Use a tree to show the employee relationships in the Allied Auto Parts Company. President Richards has two vice presidents: Greenberg and Marley. Greenberg is in charge of three regional managers: Reynolds, Hahn, and Johnson. Marley is in charge of two regional managers: Croft and Smith. Smith has an assistant: Lowell.
A. 
B. 
C. 
D. 
Write an equivalent expression. Use a commutative law.9 + b
A. b9 B. 9(1 + b) C. 9b D. b + 9
A = 45ø, B = 60ø, and c = 12. Using the Law of Sines, find C and side a.
a. a = 5.36 C = 60ø b. a = 8.78 C = 75ø c. a = 5.36 C = 75ø d. a = 5.36 C = 85ø e. a = 7.32 C = 70ø
Solve the problem.A square lawn has an area of 1152 square feet. A sprinkler placed at the center of the lawn sprays a water in a circular pattern that just covers the lawn. What is the radius of the circle?
A. 24 ft B. 48 ft C. 33.94 ft D. 16.97 ft