Write the equation of the axis of symmetry.f(x) = x2 + 11x - 2
A. x = 0
B. x = - 
C. x = 11
D. x = 
Answer: B
Mathematics
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Solve the problem.The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 4 sec when the length is 64 inches, what is the period when 
(Round to the nearest hundredth.)
A. 5.00 sec B. 4.75 sec C. 1.13 sec D. 4.50 sec
Mathematics
Use Heron's formula to find the area of the triangle. Round to the nearest square unit.a = 20, b = 15, c = 15
A. 118 B. 112 C. 115 D. 121
Mathematics
Solve the inequality. Other than ?, graph the solution set on a number line.-4x + 4 ? -5x + 1
A. [-3, ?)
B. (-?, -3]
C. (-?, -3)
D. (-3, ?)
Mathematics
Find a set of parametric equations of the line.
?
Passes through 
and is parallel to the xz-plane and the yz-plane
?
A. 
?
B.
?
C.
?
D.
?
E.
?
Mathematics