Provide an appropriate response.Find x when y = -7, given the equation 2x - y = 15.
A. -4
B. 11
C. -11
D. 4
Answer: D
Mathematics
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Use the inverse trig functions to express the angle in terms of the indicated unknown side. 
Express angle A in terms of b. Use one of the inverse trig functions tan-1, sin-1, or cos-1.
A. A = cos-1 
B. A = sin-1 
C. A = sin-1 
D. A = tan-1 
Mathematics
Solve the problem.Find the image of the given figure under the translation defined by the bold arrow followed by a reflection about the line m.
A. 
B. 
C. 
D. 
Mathematics
Solve the given trigonometric equation by use of a graphing calculator. Use values of x for 0 ? x < 2?.cos x + cos 3x = sin x
A. 0, 0.26, 1.31, 3.14, 3.40, 4.45 B. 0.61, 3.57 C. 0.61, 2.05, 3.75, 5.17 D. 2.53, 5.68
Mathematics
Establish the identity.cot2x = (csc x - 1)(csc x + 1)
What will be an ideal response?
Mathematics