Given that ? is an angle in standard position whose terminal side contains the given point, provide the exact value of the indicated function.(2, -1); cos ?
A. 
B. 
C. - 2
D. 
Answer: A
Mathematics
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Is the following correspondence a function?Domain: All students attending the University of OhioCorrespondence: Each student's teachersRange: A set of teachers
A. Yes B. No
Mathematics
Write the equation of a sine or cosine function that describes the path of the given curve.
A. y = 3 sin x B. y = 3 sin (3x) C. y = 3 sin (6x) D. y = sin (3x)
Mathematics
Find the y-intercepts and any x-intercepts.f(x) = x2 + 4
A. x-intercept (4, 0), no y-intercepts B. y-intercept (0, 4), no x-intercepts C. y-intercept (0, 4), x-intercept (4, 0) D. y-intercept (4, 0), no x-intercepts
Mathematics
Simplify.
A. 22
B. 26
C. 
D. 
Mathematics