Find the standard-form equation for an ellipse which satisfies the given conditions.An ellipse centered at the origin having focus (
, 0) and directrix x = 
A. 
+ 
= 1
B. 
+ y2 = 1
C. x2 + 
= 1
D. 
+ y2 = 1
Answer: B
Mathematics
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Add in the indicated base. 
A. 210four B. 220four C. 110four D. 120four
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Find the distance d(P1, P2) between the points P1 and P2.P1 = (0, 2); P2 = (10, 2)
A. 100
B. 10
C. 2
D. 2
Mathematics
For the pair of functions, find the indicated composition.f(x) = 
, g(x) = 
Find (f ? g)(x).
A. 
B. 
C. 
D. 
Mathematics
If necessary, write the equation in the standard form ax2 + bx + c = 0. Then identify the values of a, b, and c. Do not actually solve the equation.-5x2 + 7x = 8
A. a = -5, b = -8, c = 7 B. a = -5, b = 8, c = 7 C. a = -5, b = 7, c = 8 D. a = -5, b = 7, c = -8
Mathematics