Identify the type of surface represented by the given equation.
+ 
= 
A. Elliptical cone
B. Paraboloid
C. Ellipsoid
D. Hyperbolic paraboloid
Answer: A
Mathematics
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Find the amplitude, period, or phase shift as specified.Find the amplitude of y = 5 cos (2x - ?).
A. -2 B. 10 C. 5 D. ?
Mathematics
Solve the problem.A cell phone tower in a city transmits a signal in every direction from the tower. If the coverage area has a radius of 56 miles, what is the diameter of this coverage area?
A. 3136 mi B. 28 mi C. 560 mi D. 112 mi
Mathematics
Find a polynomial that represents the area of the figure.
A. 21s7
B. 21s12
C. 
s12
D. 
s7
Mathematics
Find all values of x satisfying the given conditions.y1 = 8x + 4(1 + x), y2 = 3(x - 6) + 10x, and y1 = y2
A. {22} B. {-7} C. {-22} D. {7}
Mathematics