Find the exact value of the expression.sin
A. 0
B. 
C. 1
D. 
Answer: C
Mathematics
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The polar equation of the graph is either r = a + b cos ? or r = a + b sin ?, a > 0, b > 0. Match the graph to one of the equations. 
A. r = 3 + 2 sin ? B. r = 2 + 3 sin ? C. r = 3 + 2 cos ? D. r = 2 + 3 cos ?
Mathematics
Find the coordinates of the vertex of the quadratic function.f(x) = -(x + 4)2 + 7
A. (-4, 7) B. (7, 4) C. (7, -4) D. (4, 7)
Mathematics
Solve.6(x - 1.1) = 9.3
A. 1.733 B. 2.65 C. 1.367 D. 15.9
Mathematics
Determine whether or not the function is one-to-one.f(x) = 
A. Yes B. No
Mathematics