Solve.?5x + 9? < 2
A. x < - 
or x > - 
B. x < 5
C. x < - 
D. - 
< x < - 
Answer: D
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Give two parametric representations for the equation of the parabola.y = x2 - 4x + 7
A. x = t, y = t2 + 4t + 7 for t in (-?, ?); x = t - 2, y = t2 + 3 for t in (-?, ?) B. x = t, y = t2 + 4t + 7 for t in (-?, ?); x = t - 2, y = t2 - 3 for t in (-?, ?) C. x = t, y = t2 - 4t + 7 for t in (-?, ?); x = t - 2, y = t2 + 3 for t in (-?, ?) D. x = t, y = t2 - 4t - 7 for t in (-?, ?); x = t - 2, y = t2 - 3 for t in (-?, ?)
Factor the polynomial.375k3m - 192m4
A. 3m(125k - 4m)(k2 + 20km + 16m2) B. 3m(5k - 4m)(25k2 + 20km + 16m2) C. (15km - 12m2)(25k2 + 16m2) D. 3m(5k + 4m2)(25k2 - 20km + 16km2)
Find the mode or modes for the list of numbers.Gas bills: $88, $75, $32, $75, $29, $88
A. $88 B. $64.50 C. $75 D. $88, $75
Solve the problem.The volume V of a right circular cylinder of height 2 and radius r is V(r) = 2?r2. Find the instantaneous rate of change of volume with respect to radius r when r = 7.
A. 32? ft3/ft B. 28? ft3/ft C. 98? ft3/ft D. 23? ft3/ft