Find the slope of the polar curve at the indicated point.r = -4 cos ? - 6 sin ?, ? = 
A. - 
B. - 
C. 
D. 
Answer: D
Mathematics
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Write the given Chinese numeral as a Hindu-Arabic numeral.
A. 9000 B. 90 C. 96 D. 900
Mathematics
Find the midpoint of the segment having the given endpoints.(7, 7) and (4, 8)
A. (3, -1)
B. 
C. (11, 15)
D. 
Mathematics
Graph the function. Show at least one period.y = -3 cos(x - ?)
A. 
B. 
C. 
D. 
Mathematics
An object attached to a coiled spring is pulled down a distance a from its rest position and then released. Assuming that the motion is simple harmonic with period T, write an equation that relates the displacement d of the object from its rest position after t seconds. Also assume that the positive direction of the motion is up.a = 17;
T = 5 seconds
A. d = -17 cos 
B. d = -5 cos 
C. d = -17 cos 
D. d = -17 sin 
Mathematics