Find the diameter of the circle.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Use the horizontal line test to determine whether the function is one-to-one.
A. Yes B. No
Mathematics
Find the domain of the expression.
A. {x|x ? -2 and x ? -4} B. {x|x ? -8 and x ? +8} C. {x|x ? 2 and x ? 4} D. {x|x ? 0}
Mathematics
Solve.15 is 1% of what?
A. 150 B. 1500 C. 15 D. 15,000
Mathematics
Find (i) the amplitude, (ii) the period, and (iii) the phase shift.y = - 
cos(2x - 2?)
A.
| (i) 2 | (ii) ? | (iii) ? |
B.
(i)  | (ii) ? | (iii)  |
C.
| (i) 2 | (ii) 2? | (iii) 2? |
D.
(i)  | (ii) ? | (iii) ? |
Mathematics