Graph the polar equation.r = 4 cos 6?
A. 
B. 
C. 
D. 
Answer: B
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Simplify the given expression. Expansion of any term is not necessary; proper recognition of the form of the expression leads to the proper result.2 - 4 cos2 2x
A. 2 cos 4x B. -2 cos 4x C. -2 cos 2x D. 4 cos 4x
Provide an appropriate response.Gerald made a trip to his friend's house for a birthday party. His trip is shown below, where his distance (in miles) from home is graphed as a function of the hours past 2:00. Refer to the graph to answer the questions about his trip.(i) What time did he leave home?(ii) When did he realize he forgot his gift?(iii) How far from home was he when he realized he forgot his gift?(iv) What did he do about the forgotten gift?
A. (i) 2:00 (ii) 2:30 (iii) About 1 mile (iv) Bought one at a store on the way B. (i) 2:30 (ii) 2:45 (iii) About 4 miles (iv) Returned home C. (i) 3:00 (ii) 3:45 (iii) About 4 miles (iv) Mailed it later D. (i) 3:30 (ii) 3:45 (iii) About 1 mile (iv) Returned home
Perform the indicated operation.
A. 6.24 B. 5.34 C. 5.24 D. 6
Determine if the relation is a function.
A. No B. Yes