Express as a single logarithm.72 log9
+ log9(72x6) - log9 72
A. log9 x14
B. log9 x15/8
C. log9 x14/9
D. log9 x17/6
Answer: A
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Answer each question appropriately.Suppose the velocity of a body moving along the s-axis is 
= 9.8t - 6.Is it necessary to know the initial position of the body to find the body's displacement over some time interval? Justify your answer.
A. Yes, integration is not possible without knowing the initial position. B. No, the initial position is necessary to find the curve s= f(t) but not necessary to find the displacement. The initial position determines the integration constant. When finding the displacement the integration constant is subtracted out. C. No, displacement has nothing to do with the position of the body. D. Yes, knowing the initial position is the only way to find the exact positions at the beginning and end of the time interval. Those positions are needed to find the displacement.
Provide an appropriate response.Is the best buy (lowest cost per unit) always the best value? Give an example when this is not true and explain why.
What will be an ideal response?
Graph the parametric equation for the given interval. Add arrows to show how the curve is traced out. x = 
, y = t; 0 ? t ? 4
A. 
B. 
C. 
D. 
Solve.One lottery ticket won a prize of $9,512,000. The winning ticket was purchased by 29 people who had pooled their money. Find how many dollars each person receives if they each receive an equal share.
A. $327,000 B. $328,000 C. $32,900 D. $32,800