Find the polar equation of the given rectangular equation.x2 = 9y
A. r = 9 csc ? cot ?
B. r = 
C. r = 9 sec ? tan ?
D. r = 
Answer: C
Mathematics
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Determine whether the statement is true or false.Let A = {1, 3, 5, 7} B = {5, 6, 7, 8} C = {5, 8} D = {2, 5, 8} U = {1, 2, 3, 4, 5, 6, 7, 8}C ? D
A. True B. False
Mathematics
Find the equation of the parabola corresponding to the given information.The parabola has focus and directrix as shown.
A. y = - x2
B. y = 
x2
C. y = - 
x2
D. x = 
y2
Mathematics
Find the probability of the event.Give the probability that the roll of a die will show 4 or 6.
A. 2
B. 1
C. 
D. 
Mathematics
Use the quotient rule to simplify.
A. 5
B. 
C. 
D. 5
Mathematics