Use grouping to factor the polynomial.ax + bx - ay - by
A. (x + y)(a + b)
B. (x - y)(a + b)
C. (x - y)(a - b)
D. (x + y)(a - b)
Answer: B
Mathematics
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Solve the equation.(x + 9)(x + 8) = 0
A. 9, 8 B. 9, -8 C. 9, -9, 8, -8 D. -9, -8
Mathematics
Solve the problem.To get a C in history, Nandan must average 73 on four tests. Scores on the first three tests were 66, 76, and 63. What is the lowest score that Nandan can get on the last test and still receive a C?
A. 70 B. 14 C. 68 D. 87
Mathematics
Provide an appropriate response.When a division problem results in an answer that stops and does not continue on forever, the quotient is called a 
.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the formula for the indicated letter. Assume that all variables represent nonnegative numbers.S = 
gt2 for t
A. t = 2
B. t = 
C. t = 2gS
D. t = 
Mathematics