Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.(x-8y)7
A. 
B. 
C. x56y7
D. 
Answer: D
Mathematics
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Identify the equation without applying a rotation of axes.x2 + 12xy + 36y2 + 4x - 2y - 6 = 0
A. ellipse B. hyperbola C. parabola D. not a conic
Mathematics
Solve for the variable. Choose the method you feel will work best.6x2 = -10x - 3
A. x = 
B. x = 
C. x = 
D. x = 
Mathematics
Determine if the given point is a solution of the system of linear inequalities.
; (9, -1)
A. Yes B. No
Mathematics
Solve. Use the fact that the radius of the Earth is 3960 miles and 1 mile = 5280 feet.A guard tower at a state prison stands 103 feet tall. How far can a guard see from the top of the tower? Round to the nearest tenth of a mile.
A. 17.6 mi B. 909 mi C. 12.4 mi D. 5600.3 mi
Mathematics