Solve the equation.
+ 
= 1
A. 
B. 12
C. 9
D. 36
Answer: D
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Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = x2 between x = 4 and x = 8 using the "midpoint rule" with four rectangles of equal width.
A. 174 B. 165 C. 126 D. 149
Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r = 6 sin ?
A. 
(x - 3)2 + y2 = 9; circle, radius 3,
center at (3, 0) in rectangular coordinates
B. 
x2 + (y + 3)2 = 9; circle, radius 3,
center at (0, -3) in rectangular coordinates
C. 
x2 + (y - 3)2 = 9; circle, radius 3,
center at (0, 3) in rectangular coordinates
D. 
(x + 3)2 + y2 = 9; circle, radius 3,
center at (-3, 0) in rectangular coordinates
Graph the line having slope m and containing the given point. Do not find the equation of the line.m = 
, (5, 6)
A. 
B. 
C. 
D. 
Solve the problem.Find the x-coordinate of the vertex of a parabola passing through the points (0, 5) and (22, 5).
A. 11 B. 2.5 C. 22 D. 5