Identify the equation without applying a rotation of axes.2x2 + 8xy + 16y2 + 4x + 2y - 1 = 0
A. parabola
B. hyperbola
C. ellipse
D. not a conic
Answer: C
Mathematics
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Graph the function.f(x) = ln x - 2 
A. 
B. 
C. 
D. 
Mathematics
Find the sum or difference. Write the answer in standard form.(6 - 9i) + (3 + 6i)
A. 9 + 3i B. 9 - 3i C. -9 + 3i D. 3 + 15i
Mathematics
Solve the problem.The weight of a body above the surface of the earth varies inversely as the square of its distance from the center of the earth. What is the effect on the weight when the distance is multiplied by 4?
A. The weight is divided by 4. B. The weight is divided by 16. C. The weight is multiplied by 16. D. The weight is multiplied by 4.
Mathematics
Perform the indicated operation. Assume that all variables represent nonnegative real numbers.
+ 5
+ 6
A. 43
B. 11
C. 12
D. 42
Mathematics