Find the length of the curve.y = 
, 0 ? x ? 
A. 4
B. 16
C. 
D. 2
Answer: A
Mathematics
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Write the equation of the line with the given slope and y-intercept.Slope 
; y-intercept is -2
A. y = 
x + 2
B. y = - 
x + 2
C. y = 
x - 2
D. y = - 
x - 2
Mathematics
Write the vector v in the form ai + bj, given its magnitude 
and the angle ? it makes with the positive x-axis.
= 11, ? = 150°
A. v = 11
B. v = 11
C. v = 11
D. v = 11
Mathematics
The graph of f(x) = ax2 + bx + c is given in the figure. Solve the equation 
A. -8 B. 0 C. 8 D. No real solutions
Mathematics
Find a rectangular equation for the curve and describe the curve.x = 
, y = t - 3; -3 ? t ? 3
A. y = x3 - 3; portion of a cubic graph B. y = (x + 3)3; portion of a cubic graph C. y = (x - 3)3; portion of a cubic graph D. y = x3 + 3; portion of a cubic graph
Mathematics