Simplify the expression. Write the result using positive exponents only.
A. p9
B. p14
C. 
D. 
Answer: A
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Solve the system of equations. x - y + 2z = -14x + z = -1 x + 5y + z = -6
A. (-1, -1, 0) B. No solution C. (0, -1, -1) D. (-1, 0, -1)
Find the slope of a line tangent to the given curve at the point P by finding the limit of the slopes of the secant lines PQ as Q approaches P.y = 7x - 7x2; P is (5, -140); let Q have x-values of 4.5, 4.9, 4.99, 4.999
A. Slopes: -31.5, -34.3, -34.93, -34.993 m = -35 B. Slopes: -31.5, -34.3, -34.93, -34.993 m = -28 C. Slopes: -59.5, -62.3, -62.93, -62.993 m = -63 D. Slopes: -66.5, -69.3, -69.93, -69.993 m = -70
Perform the indicated operation. Give answers in rectangular form expressing real and imaginary parts to four decimal places.[8(cos 30° + i sin 30°)][3(cos 90° + i sin 90°)]
A. -1.0000 + 1.7321i B. -0.5000 + 0.8660i C. -5.5000 + 9.5263i D. -12.000 + 20.7846i
Answer the question.If the rational expression 
represents the area of a rectangle and 
represents the length of the rectangle, what rational expression represents the width?
A. 
B. 
C. 
D. 