Solve the problem.If v = 5i + 7j, what is 
?
A. 6
B. -6
C. 12i
D. 12
Answer: A
Mathematics
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Factor the polynomial completely. If a polynomial cannot be factored, state that it is irreducible.49x2 - 70x + 25 - 16y2
A. (7x + 5 + 4y)(7x + 5 - 4y) B. (7x - 5 + 4y)(7x - 5 - 4y) C. irreducible D. (7x + 5 + 4y)(7x - 5 - 4y)
Mathematics
Find the value of the permutation.P(9, 0)
A. 362,880 B. 5 C. 1 D. 725,760
Mathematics
Solve the problem.The manager of a CD store has found that if the price of a CD is 
then x CDs will be sold. Find an expression for the total revenue from the sale of x CDs 
Use your expression to determine the maximum revenue.
A. $26,912 B. $3364 C. $6728 D. $13,456
Mathematics
Combine the following, if possible.-3
+ 7
A. 65
B. -65
C. 47
D. -47
Mathematics