Solve the problem.How many two-letter combinations can be made from the letters in the set {a, b, c , d}? List all of them.
What will be an ideal response?
C(4, 2) = 6
{a, b}, {a, c }, {a, d}, {b, c }, { b, d}, {c, d}
Mathematics
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A. x + 4 B. 4x2 + 4x + 4 C. x2 + 4 D. x2 + 4x + 4
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Divide the real numbers. Write any improper fraction as a whole or mixed number where appropriate.
A. 
B. - 
C. -7
D. -6
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Evaluate the polynomial for the given value.2x2 - 7x + 3 when x = -4
A. 63 B. 7 C. -1 D. -57
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