Solve.Suppose the velocity of an automobile starting from rest is given by v = 
where v is the velocity in miles per hour and t is the time in seconds. Find the number of seconds when the velocity is 50 miles per hour.
A. 5 sec
B. 1.5 sec
C. 3 sec
D. 4 sec
Answer: C
Mathematics
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Express the number in scientific notation.2500
A. 2.5 × 10-2 B. 2.5 × 10-3 C. 2.5 × 103 D. 2.5 × 102
Mathematics
Find the first term and the common ratio of the geometric sequence.
, 
, 
, 
, . . .
A. a1 = 
, r = 
B. a1 = 
, r = 6
C. a1 = 
, r = 
D. a1 = 
, r = 
Mathematics
A pair of similar triangles is given. Write the corresponding angles and the ratios of the corresponding sides.
A. ?L ? ?L
?M ? ?P
?N ? ?Q
= 
= 
B. ?L ? ?L
?M ? ?Q
?N ? ?P
= 
= 
C. ?L ? ?L
?M ? ?P
?N ? ?Q
= 
= 
D. ?L ? ?L
?M ? ?Q
?N ? ?P
= 
= 
Mathematics
Express the product as a sum containing only sines or cosines.sin 
cos 
A. 
sin cos(7?)
B. 
[cos(4?) + sin(3?)]
C. 
[sin(4?) - sin(3?)]
D. 
[cos(8?) - sin(6?)]
Mathematics