Multiply and simplify.
? 
A. 1
B. 
C. -1
D. 0
Answer: A
Mathematics
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Solve the problem by applying the Fundamental Counting Principle.How many different four-letter passwords can be formed if the first letter must be an S or a T?
A. 456,976 B. 72 C. 421,824 D. 35,152
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Simplify by removing a factor equal to 1.
A. 
B. 
C. 
D. 5y7
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Factor the trinomial completely. If the polynomial cannot be factored, write "prime."x2 - 4x - 12
A. (x - 2)(x - 6) B. prime C. (x + 2)(x - 6) D. (x - 2)(x + 1)
Mathematics
Find the producers' surplus for the supply curve p = 4 + 
at x = 144.
A. $288 B. $392 C. $724 D. $1152
Mathematics