Solve the equation.
y - 2 = 5
A. y = 70
B. y = -72
C. y = 72
D. y = -70
Answer: A
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Factor.25 - (x2 + 2xy + y2)
A. (5 + x + y)(5 + x - y) B. (5 + x + y)(5 - x - y) C. (5 + x - y)(5 - x - y) D. (5 + xy)(5 - xy)
Solve the problem.A formula used to determine the velocity v in feet per second of an object (neglecting air resistance) after it has fallen a certain height is 
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A. 75.9 ft per sec B. 53.7 ft per sec C. 5760 ft per sec D. 13.4 ft per sec
Use Descartes's Rule of Signs to determine the possible number of positive and negative real zeros for the given function.f(x) = -2x9 + x3 - x2 + 4
A. 2 or 0 positive zeros, 3 or 1 negative zeros B. 3 or 1 positive zeros, 2 or 0 negative zeros C. 2 or 0 positive zeros, 2 or 0 negative zeros D. 3 or 1 positive zeros, 3 or 1 negative zeros
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