The sample space is a bag with 3 red and 1 white marble with two marbles taken at a time. What is the probability that two red marbles will be drawn?
What will be an ideal response?
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Find the indicated series by the given operation.Find the first four nonzero terms of the expansion of the function 
by adding the terms of the appropriate series. The result is the series for cosh x.
A. x + 
x2 + 
x3 + 
x5 + . . .
B. 1 + 
x2 + 
x4 + 
x6 + . . .
C. x + 
x2 + 
x4 + 
x6 + . . .
D. 1 + 
x2 + 
x3 + 
x4 + . . .
Solve the problems.Alex and Juana went on a 120-mile canoe trip with their class. On the first day they traveled 24 miles. What percent of the total distance did they canoe?
A. 5% B. 500% C. 20% D. 0.2%
Find an equation of the parabola described.Focus at (5, 0); vertex at (0, 0)
A. y = 20x2 B. x = 20y2 C. x2 = 20y D. y2 = 20x
Find an equation of an ellipse satisfying the given conditions.Vertices:(±14, 0); Length of minor axis: 16
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1