Verify the identity.
- 
= -cos x cot x
What will be an ideal response?
- 
= 
+ 1 - 1 - 
= 
? cos x - 
? 
= 
= 
= - 
= - cos x ? 
= -cos x cot x
Mathematics
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Solve the problem.Refer to the following preference schedule. 
Find the winner of a sequential runoff.
A. D B. B C. A D. C
Mathematics
Express the area of the figure as a polynomial in descending powers of the 
3x - 3
A. 2x2 - 24x + 21 B. 3x2 + 24x - 14 C. 3x2 + 18x - 21 D. -3x2 + 17x + 21
Mathematics
Find the missing coordinate to complete the ordered pair.2x + y = -9
( , 5)
A. (-7, 5) B. (5, 5) C. (-7, -5) D. (2, 5)
Mathematics
Factor when possible. If the polynomial is prime, say so.a2 - 6ab - 27b2
A. (a - 3b)(a + 9b) B. (a - 3b)(a + b) C. (a + 3b)(a - 9b) D. prime
Mathematics