Simplify. Express your answer with positive exponents. Assume that all variables are nonzero.(5x7y8)-2
A. 25x14y16
B. 
C. 
D. 
Answer: C
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the x-axis.x = 4y2, x = 4
A. 6?
B. 
?
C. 
?
D. 
?
Solve the system of equations by the addition method.
A. 
B. no solution
C. (5, 24)
D. (24, 5)
Solve the problem.Find the equation of a circle in standard form where C(6, -2) and D(-4, 4) are endpoints of a diameter.
A. (x + 1)2 + (y + 1)2 = 34 B. (x + 1)2 + (y + 1)2 = 136 C. (x - 1)2 + (y - 1)2 = 136 D. (x - 1)2 + (y - 1)2 = 34
Solve the problem.The diagonal of the floor of a rectangular office cubicle is 2 ft longer than the length of the cubicle and 5 ft longer than twice the width. Find the dimensions of the cubicle. Round to the nearest tenth, if necessary.
A. width = 4 ft, length = 11 ft B. width = 9.7 ft, length = 22.4 ft C. width = 2 ft, length = 9 ft D. width = 3.9 ft, length = 9.7 ft