Answer the question or provide an explanation.In order to purchase carpet for a room, would you need to use perimeter or area to decide how much to buy?
A. Area
B. Perimeter
Answer: A
Mathematics
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Find numbers a and b, or k, so that f is continuous at every point.
A. a = 1, b = 2 B. a = -1, b = 2 C. a = 1, b = -2 D. Impossible
Mathematics
Solve the problem.Use the exact value cos 72° = 
and identities to find the exact value of sin 72°.
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression without using a calculator.
A. -823,543
B. - 
C. 
D. 823,543
Mathematics
Sketch a graph that models the given situation.The distance that a bicycle rider is from his home if he is initially 18 miles away from home and arrives home after riding at a constant speed for 3 hours.
A. 
B. 
C. 
D. 
Mathematics