Solve the inequality. Write the solution in interval notation and graph the solution set.7x - 1 ? 6x - 8
A. (-?, -7)
B. [-7, ?)
C. [-9, ?)
D. (-?, -7]
Answer: D
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Find all the polar coordinates of the point.(4, ?/4)
A. (4, ?/4 + 2n?), (-4, -?/4 + 2n?) B. (4, ?/4 + 2n?), (-4, 3?/4 + 2n?) C. (4, ?/4 + 2n?), (-4, -3?/4 + 2n?) D. (4, ?/4 + 2n?), (4, -3?/4 + 2n?)
Find the coordinates of the centroid of the curve.Find the coordinates of the centroid of the curve x = e4t cos 4t, y = e4t sin 4t, 0 ? t ? 
.
A. (
, 
) = 
B. (
, 
) = 
C. (
, 
) = 
D. (
, 
) = 
Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r sin ? = 4
A. x = 4; vertical line 4 units
to the right of the pole
B. y = -4; horizontal line 4 units
below the pole
C. x = -4; vertical line 4 units
to the left of the pole
D. y = 4; horizontal line 4 units
above the pole
Solve the equation and check.
A. 
B. 
C. 
D. 
E. 