Find a rectangular equation for the curve with the given parametric equations.x = sin ?, y = 3 cos ?; for t in [-?, ?]
A. 9x2 + y2 = 1
B. x2 + 9y2 = 1
C. 9x2 + y2 = 9
D. x2 + 9y2 = 9
Answer: C
Mathematics
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Use trigonometric identities to solve each equation in the interval [0, 2?]3 cot2 x - 4 csc x = 1
A. 
B. 
C. 
D. 
Mathematics
Decide whether the figure is convex or concave.
A. Concave B. Convex
Mathematics
The bearing of a line segment is the acute angle that the line segment makes with a north- south line. If the bearing of PQ is N 70° E and the bearing of PR is S 32° W, what is the measure of the obtuse angle; ?QPR?
What will be an ideal response?
Mathematics
Find the indicated term of the sequence.The ninth term of the arithmetic sequence 14
, 20
, 26
, ...
A. -40
B. 62
C. -34
D. 68
Mathematics