Calculate the angle between a and b (correct to the nearest degree).
 Figure 3.png)
57°
Mathematics
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Evaluate the integral.
A. 
tan-1 4x + C
B. 
tan-1 (x + 4) + C
C. 4 tan-1 
+ C
D. 
tan-1 
+ C
Mathematics
Solve the problem.Tom Quig traveled 240 miles east of St. Louis. For most of the trip he averaged 60 mph, but for one period of time he was slowed to 20 mph due to a major accident. If the total time of travel was 6 hours, how many miles did he drive at the reduced speed?
A. 70 miles B. 60 miles C. 55 miles D. 80 miles
Mathematics
Solve the equation for y.x = 9y + 2
A. y = 9x - 2
B. y = 
x - 
C. y = 
x - 2
D. y = x - 
Mathematics
Perform the indicated operation.(4x + 7) - (-x + 6)
A. 3x + 13 B. 5x + 1 C. 5x + 13 D. 4x + 13
Mathematics