Find the conditional probability.Suppose one card is selected at random from an ordinary deck of 52 playing cards. LetA = event a diamond is selectedB = event a club is selected.Determine P (A | ( not B)).

A. 0
B. 1
C.
D.  


Answer: D

Mathematics

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Solve the given trigonometric equation analytically (using identities when necessary for exact values when possible) for values of x for 0 ? x < 2?.sec2 x - 2 = tan2 x

A.
B.
C. No solution
D.

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Find a formula for the nth term of the sequence.1, - , -   (reciprocals of squares with alternating signs)

A. an = 
B. an = 
C. an = 
D. an = 

Mathematics

Use the addition rule to solve the problem.If P(A) = 0.4, P(B) = 0.7, and P(A ? B) = 0.3, then what is P(A ? B)?

A. 0.8 B. 1.1 C. 1.4 D. 0.5

Mathematics

Solve the problem.Pennies are packaged 50 in a roll. A mother broke open some rolls of pennies. She gave her son  and she had 21 pennies left over. How many rolls of pennies did she break open?

A. 7 rolls B. 6 rolls C. 4 rolls D. 5 rolls

Mathematics