Find the vertex, the focus, and the directrix of the parabola.y = -3x2 + 12x - 8 = 0
A. V: 
; F: 
; D: x = 
B. V: 
; F: (2, -8); D: x = -16
C. V: (2, 4); F: 
; D: y = 
D. V: 
; F: (2, 1); D: x = 7
Answer: C
Mathematics
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Expand.(-3m + 3n)4
A. 81m4 - 5184m3n - 2916m2n2 - 324mn3 - 81n4 B. 81m4 - 324m3n - 486m2n2 - 324mn3 - 81n4 C. 81m4 - 5184m3n + 2916m2n2 - 324mn3 + 81n4 D. 81m4 - 324m3n + 486m2n2 - 324mn3 + 81n4
Mathematics
Use properties to perform the calculations. Express answer in simplest form.10 ? 
- 
? 
A. -1
B. 
C. 
D. 
Mathematics
Evaluate the polynomial for the given value.4x2 - 6x - 7
x = -5
A. 123 B. -137 C. -77 D. 63
Mathematics
Divide, if possible. Write the answer in simplest form.
÷ 
A. 
B. 
C. 
D. 
Mathematics