Find the standard form of the equation for the ellipse satisfying the given conditions. Foci (±2, 0); vertex (8, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: C
Mathematics
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Solve the problem.What is the probability of a dart landing in the shaded region?(Assume that the x's represent equal measures and that the dart is equally likely to land in any region on the board.)
A. 
B. 
C. 
D. 
Mathematics
Classify each angle as acute, right, obtuse, or straight.
A. Obtuse B. Right C. Acute D. Straight
Mathematics
Find a formula for the inverse of the function described below.An organization determines that the cost per person of chartering a bus is given by the formula 
where x is the number of people in the group and C(x) is in dollars.
A. C-1(x) = 
B. C-1(x) = 
C. C-1(x) = 
D. C-1(x) = 
Mathematics
Evaluate the expression for the given replacement values.
+ 
for x = 18, y = 10
A. 28 B. 23 C. 14 D. 19
Mathematics