Verify the identity.cos 
= -sin x
What will be an ideal response?
cos 
= cos 
cos x + sin 
sin x = 0 ? cos x - 1 ? sin x = -sin x
Mathematics
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Find the standard form of the parabola with the given characteristics.
directrix: x = –1 vertex: (7, –1) A) (x + 7)2 = 32(y – 1) B) (x – 7)2 = 32(y + 1) C) (x – 1)2 = 32(y + 7) D) (y – 1)2 = 32(x + 7) E) (y + 1)2 = 32(x – 7)
Mathematics
Provide an appropriate response.There are 5 women and 8 men on a committee. What is the ratio of the number of men to the total number of people on the committee?
A. 
B. 
C. 
D. 
Mathematics
Solve.x2 = 121
A. 11 B. -12, 12 C. -11, 11 D. 60.5
Mathematics
Decide whether the given sequence is finite or infinite.a1= 4; for n ? 2, an= 6?an-1
A. Infinite B. Finite
Mathematics