Solve the problem.The graph depicts a person's speed y, in miles per hour, during a 15-minute period of driving. The graph has two turning points.The first turning point is the point at which the graph stops rising and starts to fall. The second turning point is the point at which the graph stops falling and starts to rise again. Estimate and interpret the turning points.
A. The first turning point is at approximately (6, 48). This is where the person's distance from the starting point stops increasing and starts to decrease. The second turning point is at approximately 
. This is where the person's distance from the starting point stops decreasing and starts to increase again.
B. The first turning point is at approximately (5, 48). This is where the person's distance from the starting point stops increasing and starts to decrease. The second turning point is at approximately 
. This is where the person's distance from the starting point stops decreasing and starts to increase again.
C. The first turning point is at approximately (6, 48). This is where the person's speed first stops increasing and starts to decrease. The second turning point is at approximately 
. This is where the person's speed stops decreasing and starts to increase again.
D. The first turning point is at approximately (7, 48). This is where the person's speed first stops increasing and starts to decrease. The second turning point is at approximately (11, 44). This is where the person's speed stops decreasing and starts to increase again.
Answer: C
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Evaluate the integral by using multiple substitutions.
dx
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Show that the set has cardinal number ?0 by establishing a one-to-one correspondence between the set of counting numbers and the given set. Be sure to show the pairing of the general terms in the sets.
A.
| { | 1, | 2, | 3, | 4, | ..., | n, | ...} |
| ? | ? | ? | ? | ? |
B.
| { | 1, | 2, | 3, | 4, | ..., | n, | ...} |
| ? | ? | ? | ? | ? |
C.
| { | 1, | 2, | 3, | 4, | ..., | n, | ...} |
| ? | ? | ? | ? | ? |
D.
| { | 1, | 2, | 3, | 4, | ..., | n, | ...} |
| ? | ? | ? | ? | ? |
Multiply.(-0.703)(-0.02)
A. 1.406 B. 0.01406 C. 0.0001406 D. 0.001406
Solve the problem.An airline decides to reduce ticket prices by x dollars form the current price of $907. (i) Write a polynomial that gives the new price after the x-dollar deduction. (ii) The revenue is the number of tickets sold times the price of each ticket. If 50 tickets were sold when the price was $907 and 30 additional tickets are sold for each dollar the price is reduced, write a polynomial that gives the revenue in terms of x when the original price is reduced by x dollars.
A. (i) -x + 907 (ii) -30x2 + 27,210x + 45,350 B. (i) -x + 907 (ii) 30x2 - 27,210x + 45,350 C. (i) -x - 907 (ii) -30x2 - 45,350x + 27,210 D. (i) -x - 907 (ii) 30x2 + 45,350x + 27,210