Find an equivalent expression without parentheses.-(9x - 7)
A. 63x
B. -9x + 7
C. 9x - 7
D. -9x - 7
Answer: B
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Find the particular solution to the given differential equation that satisfies the given conditions.3y" + 17y' - 28y = 0; Dy = 0 and y = 2 when x = 0
A. y = 
e-7x + 
e4x/3
B. y = - 
e-7x - 
e4x/3
C. y = 
e7x + 
e-4x/3
D. y = 
e-7x + 
e4x/3
Use the choices below to fill in the blank. Choices may be used more than once or not at all.
The number that occurs most often in a set of number is called the 
.
A. mean B. mode C. median D. range
Factor completely, or state that the polynomial is prime.3x4 - 48
A. 3(x2 + 4)(x2 - 4) B. 3(x2 + 4)(x + 2)(x - 2) C. 3(x + 2)2(x - 2)2 D. prime
Graph the equation and state whether the line has a positive or negative slope.y - 5 = 5x
A. Negative slope
B. Positive slope
C. Negative slope
D. Positive slope