Remove parentheses and simplify.(4x - 9y + 3) - 2(-4x + 9y - 3)
A. -8x + 18y - 6
B. -12x + 27y - 9
C. 12x - 27y + 9
D. 8x - 18y + 6
Answer: C
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Write the equation for the plane.The plane through the point A(5, 5, 9) perpendicular to the vector from the origin to A.
A. 5x + 5y + 9z = 131
B. 5x + 5y + 9z = 19
C. 5x + 5y + 9z = 
D. 5x + 5y + 9z = -131
Solve the problem. Round to the nearest tenth when necessary.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height h of the outside walls.A = 9 m
A. 93 m B. 69 m C. 9.6 m D. 3 m
Find the quotient and the remainder.7x3 + 59x2 - 27x + 81 divided by x + 9
A. 7x2 - 4x + 9; remainder 0 B. x2 + 4x + 7; remainder 0 C. x2 + 5x + 6; remainder 0 D. 7x2 + 4x + 9; remainder 0
Find the product AB, if possible.A = 
, B = 
A. 
B. AB is not defined.
C. 
D. 