Choose the equation that matches the graph.
A. 4y2 = x
B. x2 = 4y
C. 4x2 = -y
D. 4x2 = y
Answer: D
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Determine whether the given geometric series is convergent or divergent, and find the sum if it is convergent.17 + 10.2 + 6.12 + 3.672 + ...
A. Convergent; S = 63.75 B. Convergent; S = 42.5 C. Divergent D. Convergent; S = 25.5
Factor the expression.14y3 + 42y2
A. 14(y3 + 3y2) B. 14y2(y - 3) C. 14y2(y + 3) D. 14y(y2 + 3)
Solve the problem.An element decays at the rate of S(t) = se-0.022t, where s is the initial amount in grams and t is the time in years since this initial amount was present. If you have a 89-gram piece of this element, how many grams will you have 4 years from now? Round to the nearest tenth of a gram.
A. 81.5 g B. 97.2 g C. 43.5 g D. 0.9 g
Find an equation in slope-intercept form (where possible) for the line.Through (2, -4) and (2, -9)
A. y = -4
B. - 
x - 4y = 0
C. - 
x - 9y = 0
D. x = 2