Which is the best estimate of 82.33%??
?
A.
?
B.
?0.77
C.
?1.02
D.
?
E.
?0.82
Answer: E
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Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.(-8x2y)(-7x3y5)
A. -56x5y5 B. -15x5y5 C. 56x6y5 D. 56x5y6
Use a system of equations to find the parabola of the form 
that goes through the three given points.
, 
, 
A. y = -3x2 - 4x + 2 B. y = -3x2 - 4x - 2 C. y = -3x2 + 4x - 2 D. y = 3x2 - 4x - 2
Determine two functions, designated by y1 and y2, such that their union will give the graph of the given equation.(x - 1)2 + (y + 4)2 = 4
A. (x - 1) + (y1 + 4) = 2 and (x - 1) + (y2 + 4) = -2
B. y1 = 4 + 
and y2 = 4 - 
C. y1 = -4 + 
and y2 = -4 - 
D. y1 = -4 + 
and y2 = -4 - 
Use Cramer's rule to determine if the system is inconsistent system or contains dependent equations. x + z = 12x - 2y = -2 y + z = 4
A. system contains dependent equations B. system is inconsistent