Find an equation of a parabola satisfying the given conditions.Focus at (
, 0), directrix x = - 
A. x2 = 4
x
B. y2 = 12x
C. y2 = 4
x
D. y2 = 4
y
Answer: C
Mathematics
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Subtract.(7w4 - 8wz + 6wz2) - (4w4 + 3wz - 7wz2)
A. 11w4 + 11wz + 13wz2 B. 3w8 - 11w2z2 + 13w2z4 C. 3w4 - 11wz + 13wz2 D. 3w4 - 11w2z2 + 13wz2
Mathematics
If the following is part of a geometric sequence, find the missing terms.8, 
, 
, 40
A. 8
, 8
B. 8
, 8
C. 8
, 8
D. 
, 
Mathematics
Solve the problem.The length of a rectangle is 10 inches more than its width. If 5 inches are taken from the length and added to the width, the figure becomes a square with an area of 289 square inches. What are the dimensions of the original figure?
A. 7 in. by 17 in. B. 12 in. by 22 in. C. 12 in. by 17 in. D. 17 in. by 17 in.
Mathematics
Multiply and simplify. Assume that all variables represent non-negative numbers.(
+ 2)(
- 2)
A. 12
B. 4
C. 6
D. 8 - 2
Mathematics