Find an exact value.cos 15°
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the domain and range of the function.f(x) = 
A. D: (-?,?), R: 
B. D: [0,?), R: (-?,?)
C. D: [0,?), R: 
D. D: (-?,0], R:(-?,0]
Mathematics
Find the vertex of the parabola, and determine whether the parabola opens upward, downward, to the left, or to the right.x = (y - 2)2 - 2
A. (-2, 2), right B. (-2, 0), left C. (2, 2), right D. (0, -2), left
Mathematics
Rewrite the following number using digits.Two billion
A. 2,000,000,000,000 B. 2,000,000,000 C. 2,000,000 D. 4,000,000,000
Mathematics
Solve the system.
A. x = -3, y = 0, z = 4 B. x = 3, y = 0, z = -4 C. x = 0, y = -6, z = 1 D. x = 0, y = 6, z = -1
Mathematics