Solve the system.y = x2 - 8y = -x2
A. (0, 0), (2, -4), (-2, 4), (0, 8)
B. (0, 0), (-2, -4)
C. (-2, -4), (2, -4)
D. (0, 0), (-2, -4), (2, -4), (0, -8)
Answer: C
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Suppose the figure below is an exaggerated diagram of a plane flying above the earth. If the plane is 4.25 miles above the earth and the radius of the earth is 4,000 miles, how far is it from the plane to the horizon? Round your answer to the nearest mile.
?
?
?
?
A. 199 mi B. 174 mi C. 183 mi D. 184 mi E. 187 mi
Perform the indicated operations and simplify.
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Find the indicated intercept(s) of the graph of the function.x-intercepts of f(x) = 
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