Solve the problem.A truck burns fuel at the rate (gallons per hr) of 
while traveling at x mph. If fuel costs 
per gallon, find the speed that minimizes total cost for a 
trip. Round to the nearest tenth.
A. 37.0 mph
B. 35.0 mph
C. 42.0 mph
D. 31.5 mph
Answer: B
Mathematics
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Use the table of values of f to estimate the limit.Let f(x) = 
, find 
f(x).
A. 
; limit = 0.4
B. 
; limit = -0.5
C. 
; limit = 0.5
D. 
; limit = 0.6
Mathematics
Find the phase shift of the function.y = 5 cos (6x + ?)
A. 5? units to the right
B. 6? units to the right
C. 
units to the left
D. 
units to the left
Mathematics
Provide an appropriate response.Explain why the acid-test ratio is a better measure of financial health than the current ratio.
What will be an ideal response?
Mathematics
Solve the problem.The price p (in dollars) and the quantity x sold of a certain product obey the demand equation p = -5x + 160, 0 ? x ? 32.What price should the company charge to maximize revenue?
A. $19.2 B. $8 C. $24 D. $16
Mathematics