Graph the equation and give the coordinates of the vertex.y = -x2 + 2x + 3 
A. (-1, -4)
B. (1, 4)
C. (1, 2)
D. (1, -4)
Answer: B
Mathematics
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Add or subtract. Express the answer as a mixed number.15
- 6
A. 9
B. 7
C. 8
D. 8
Mathematics
Add or subtract as indicated. Write your answer in the form a + bi.[(4 + 3i) - (5 + 6i)] - (10 - 7i)
A. 19 + 4i B. -11 + 2i C. -11 + 4i D. 19 + 2i
Mathematics
Solve by the quadratic formula. If there are no real roots, say so.
d2 - d + 
= 0
A. No real solution
B. d = 
C. d = 
D. d = 
, d = 
Mathematics
Determine the most appropriate metric unit to go in the blank. Choose from km, m, cm, mm, L, ml, kg, g, and mg.The length of the nail is 30 
.
A. mg B. ml C. mm D. cm
Mathematics