Perform the indicated operation. Write the result in standard form.(1 + 4i) + (6 + 9i) - 6i
A. -5 + 13i
B. 1 + 7i
C. 7 - 7i
D. 7 + 7i
Answer: D
Mathematics
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If 
, calculate the value of 
?
A. 2.93 B. 45.26 C. 4.04 D. None of the above
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Factor the GCF from the polynomial.-9x2 - 6xy
A. -3x(3x + 2y) B. 3x(3x - 2y) C. -3(3x2 + 2xy) D. -3x(3x - 2y)
Mathematics
Identify the equation as representing either a circle, a parabola, an ellipse, or a hyperbola.3x2 + 8x - y = 72
A. Hyperbola B. Circle C. Parabola D. Ellipse
Mathematics
Substitute to find the value of the expression.The area of a rectangle of length ? and width w is given by the formula A = ?w. Ann's backyard is rectangular with a length of 26.9 yards and a width of 18.8 yards. Find the area of Ann's backyard.
A. 45.7 yd2 B. 45.7 yd C. 505.72 yd2 D. 505.72 yd
Mathematics