Solve by the substitution method. x - 4y = 4-3x - 3y = 3
A. {(1, -2)}
B. {(1, 0)}
C. ?
D. {(0, -1)}
Answer: D
Mathematics
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A. x = 3 B. x = 1 C. x = 9 D. x = 0
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Let E and F be events with Pr(E) = 0.4, Pr(F) = 0.6, and Pr(E ? F) = 0.8. Find Pr(F|E).
Fill in the blank(s) with the appropriate word(s).
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Use the Venn diagram below to determine the probability.
P(A ? B)
A. 
B. 
C. 
D. 
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