Solve the problem.If the police have 7 suspects, how many different sets of 5 suspects can they select for a lineup?
A. 42
B. 2520
C. 21
D. 35
Answer: C
Mathematics
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Express the trigonometric function in terms of the same function of a positive acute angle.sin 618°
A. sin 33° B. -sin 78° C. sin 78° D. -sin 33°
Mathematics
The polar coordinates of a point are given. Find the rectangular coordinates of the point.
A. 
B. 
C. 
D. 
Mathematics
Factor using the ac-method.6x2 - 5xt - 4t2
A. (2x - t)(3x + 4t) B. prime C. (2x + t)(3x - 4t) D. (6x + t)(x - 4t)
Mathematics
Solve.In a practice run, a race car driver's speed is clocked at 142.784 mph at the end of her first lap, and at 167.420 mph at the end of the next lap. How much faster was she driving at the end of the second lap?
A. 24.636 mph B. 24.536 mph C. 25.636 mph D. 24.646 mph
Mathematics