Use the general multiplication rule to find the indicated probability.Two cards are selected without replacement from a standard deck of 52 cards. What is the probability that both cards are the same color (i.e., either both black or both red)?
A. 0.490
B. 0.500
C. 0.245
D. 0.250
Answer: A
Mathematics
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Solve the initial value problem.
= - 
cos 
?, r(0) = -2
A. r = -sin 
? - 2
B. r = sin 
? - 2
C. r = - 
sin 
? - 2
D. r = cos 
? - 3
Mathematics
Solve the problem.Don runs a charity fruit sale, selling boxes of oranges for $11 and boxes of grapefruit for $10. If he sold a total of 762 boxes and his total income was $8125, how many boxes of oranges did he sell?
A. 458 boxes B. 383 boxes C. 257 boxes D. 505 boxes
Mathematics
Find the coefficient of x4 y5 in the binomial expansion of (x + y)9.
What will be an ideal response?
Mathematics
Write out 9 + 9 + 9 as a multiplication.
What will be an ideal response?
Mathematics