Simplify the expression by combining like terms, if possible.5.3x - 1.3y - 3.3x + 6y + 2.5x
A. 4.5x + 7.3y
B. 11.1x + 4.7y
C. 4.5x - 1.3y + 6
D. 4.5x + 4.7y
Answer: D
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Solve the problem.Find k such that the line kx + 15y = 4 is perpendicular to the line through (5, -8) and (-2, -4).
A. k = -26.25 B. k = -33.75 C. k = 26.25 D. k = 33.75
What is the conjugate of -2+j?
What will be an ideal response?
Solve the problem.The finance charge on a loan taken out by Ximena is $713. If there were 48 equal monthly installments needed to repay the loan, and the loan is paid in full with 9 months remaining, find the amount of unearned interest. (Round answer to the nearest cent.)
A. $27.28 B. $22.76 C. $472.91 D. $468.38
Use the discriminant to decide whether the equation represents a parabola, an ellipse, or a hyperbola.6x2 - 3y2 + 3x + 10y + 2 = 0
A. Ellipse B. Hyperbola C. Parabola