Find an algebraic expression for the given expression.cos(2 cos-1 x)
A. -1
B. 1
C. 2x2 - 1
D. 2x2 + 1
Answer: C
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Find T, N, and B for the given space curve.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 2tk
A. T = 
i + 
j + 
k; N = 
i + 
j; B = 
i + 
j + 
k
B. T = 
i - 
j + 
k; N = 
i + 
j; B = - 
i + 
j + 
k
C. T = 4
i - 4
j + 2k; N = 3
i + 3
j; B = - 1
i + 1
j + 4
k
D. T = 
i - 
j + 
k; N = 
i + 
j ; B = - 
i + 
j + 
k
Factor out the GCF from the polynomial.2x2y + 4x
A. xy(2x + 4) B. 2y(x2 + 2x) C. 2x(xy + 2) D. 2x(xy + 2x)
Find the volume of the solid generated by revolving the shaded region about the given axis.About the y-axis
A. 
?
B. 
?
C. 18?
D. 
?
Tell what possible misuses or misinterpretations may exist for the following statement.Annual traffic fatalities were higher in the previous decade with interstate speeds of 60 miles per hour than now with interstate speeds of 70 miles per hour. Therefore, the faster you drive, the safer you will be.
What will be an ideal response?