Simplify the expression. Assume that all variables are positive.
A. 3xy2
B. 9y2
C. 3y4
D. 3y2
Answer: D
Mathematics
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Solve the problem.City A has an elevation of 9896 feet above sea level while city B has an elevation of 17,273 feet below sea level. Find the difference in elevation between those two cities.
A. 7477 ft B. 27,169 ft C. 7377 ft D. 27,269 ft
Mathematics
Find the real solutions of the equation.
= 9
A. {79} B. {81} C. {121} D. {83}
Mathematics
Solve the equation by first clearing the fractions.
x - 
x = 4
A. {120} B. {-60} C. {60} D. {-120}
Mathematics
Give the focus, directrix, and axis for the parabola.y2 = -20x
A. (0, -5), y = 5, y-axis B. (-5, 0), x = 5, x-axis C. (5, 0), x = -5, x-axis D. (-5, 0), y = 5, y-axis
Mathematics