Multiply.(-10)(-5)(-7)
A. 350
B. -350
C. -250
D. -360
Answer: B
Mathematics
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Factor completely.x2 - 2xy - 35y2
A. (x - 7y)(x + 5y) B. (x - 7y)(x + y) C. (x + 7y)(x - 5y) D. (x - y)(x + 5y)
Mathematics
Find the opposite of the number.-1
A. -1 B. 0 C. 1 D. does not exist
Mathematics
Determine the quadratic function whose graph is given.
A. f(x) = -x2 - 4x - 5 B. f(x) = -x2 + 4x + 5 C. f(x) = -x2 - 4x + 5 D. f(x) = x2 - 4x + 5
Mathematics
Solve the problem.The speed of a stream is 6 mph. If a boat travels 84 miles downstream in the same time that it takes to travel 42 miles upstream, what is the speed of the boat in still water?
A. 12 mph B. 20 mph C. 21 mph D. 18 mph
Mathematics