Find the axis of symmetry of the function.f(x) = 2x2 + 16x + 31
A. x = -4
B. x = 4
C. x = 1
D. x = -1
Answer: A
Mathematics
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Use differentiation to determine whether the integral formula is correct.
dx = 
+ C
A. Yes B. No
Mathematics
Solve the problem.Find the equation of the line which contains P(1, 3) and which is parallel to the x-axis.
A. x = 3 B. x = 1 C. y = 1 D. y = 3
Mathematics
Use Cramer's Rule, if possible, to solve the system of linear equations. 
A. (- 52, 7)
B. 
C. 
D. not possible
Mathematics
A mountain cabin has a single room with dimensions 
. What is the total volume of air in the room that will be circulated throughout the central ventilating fan?
A. 946 ft 3 B. 1,936 ft 3 C. 3,388 ft 3 D. 160 ft 3 E. 1,694 ft 3
Mathematics