Write the equation in standard form for an ellipse or a hyperbola centered at (h, k).4x2 + 10y2 - 40 = 0
A. 
- 
= 1
B. 
+ 
= 1
C. 
- 
= 1
D. 
+ 
= 1
Answer: B
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A deck of cards contains 52 cards. These cards consist of four suits (hearts, spades, clubs, and diamonds) of each of the following: 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king, and ace. If a card is chosen from a deck of cards, find the probability of each event.Selecting a king
A. 
B. 
C. 
D. 
Find the requested composition of functions.Given f(x) = 5x + 9 and g(x) = 4x - 1, find (f ? g)(x).
A. 20x + 14 B. 20x + 8 C. 20x + 35 D. 20x + 4
Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
A. $0.75 B. $2.00 C. -$3.00 D. $3.00
X is Uniform(15, 25).
Find E ( X ), Var ( X ), and SD( X ) for the given random variable