Find the probability.A card is drawn from a well-shuffled deck of 52 cards. What is the probability that the card will have a value of 3 and be a face card?
A. 
B. 
C. 
D. 0
Answer: D
Mathematics
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Find the Jacobian of the transformation.
x = 7asin?, y = 6acos?
Mathematics
Translate the problem to a system of equations, then solve using Cramer's Rule.Twice the water flow in the hot-water pipe is the same as three times the flow in the cold-water pipe. The combined flow is 1200 liters per hour. What is the flow in each pipe?
A. 600 liters/hr hot, 400 liters/hr cold B. 400 liters/hr hot, 600 liters/hr cold C. 720 liters/hr hot, 480 liters/hr cold D. 480 liters/hr hot, 720 liters/hr cold
Mathematics
Solve the equation.
+ 2 = x
A. ?
B. 
C. 
D. 
Mathematics
Write the expression in the standard form a + bi.If z = 7 - 9i and w = 6 + 7i, evaluate 
.
A. -13 + 2i B. 13 - 2i C. 1 + 16i D. 13 + 2i
Mathematics