Simplify.-|-7|
A. 0
B. -7
C. - 
D. 7
Answer: B
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Rotate the coordinate axes to change the given equation into an equation which has no cross product (xy) term. Identify the graph of the equation as a hyperbola, ellipse, parabola, a straight line, or parallel lines.5x2 + 6xy + 5y2 = 15
A. 8u2 + 2v - 15 = 0; Parabola B. 8u2 - 2v2 - 15 = 0; Hyperbola C. 8u2 + 2v2 - 15 = 0; Ellipse D. 8u2 + 2u - 15 = 0; Parallel lines
Solve formula for the specified variable.P = a + b + c
for c
A. c = P - a - b B. c = P + a + b C. c = P + a - b D. c = a + b - P
List all numbers from the given set B that are members of the given Real Number subset.B = {3, 
, -5, 0, 0.
, 
} Integers
A. 3, 0, 
B. 3, -5, 0
C. 3, 0
D. 3, -5, 0, 
Decide whether the equation describes a function.x - 8y = 9
A. yes B. no