Use the multiplication principle to solve the equation.7b = -133
A. -19
B. 140
C. 1
D. -140
Answer: A
Mathematics
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Solve for the angle ?, where 0 ? ? ? 2?sin 2? + cos ? = 0
A. ? = 
, 
, 
, 
B. 
, 
, 
, 
C. ? = 
, 
, 
, 
D. ? = 
, 
, 
, 
Mathematics
Evaluate the expression.23 ? 2-4
A. 
B. 128
C. - 
D. -2
Mathematics
Factor by grouping.8x2 + 20xy + 6xy + 15y2
A. (4x + 3)(2x + 5) B. (4x - 3y)(2x + 5y) C. (8x + 3y)(x + 5y) D. (4x + 3y)(2x + 5y)
Mathematics
Solve the problem.A boat can go 105 mph in still water. It takes as long to go 560 miles upstream as it does to go downstream 640 miles. How fast is the current?
A. 1 mph B. 7 mph C. 8 mph D. 6 mph
Mathematics