Check whether this set and operation form a group. Answer yes, no, or in definably.
?

What will be an ideal response?

no

Mathematics

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Express the set in the simplest interval form.(-?, 2) ? (-2, ?)

A. (-2, 2) B. [-2, 2) C. (-?, -2] D. (-?, ?)

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Evaluate the function.f(x) = -4x - 7; f(-2)

A. 4 B. 28 C. 1 D. -7

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Factor.25k2 - 121j2

A. (5k - 11j)2 B. (5k - 11j)(5k + 11j) C. 55(k - j)(k + j) D. cannot be factored

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For the functions f(x) and g(x), determine the domain of (f/g)(x) (the quotient of f and g).f(x) = 3x + , g(x) = 10 - x

A. {x ? x is a real number} B. {x ? x is a real number and x ? 10} C. {x ? x is a real number and x ? 5} D. {x ? x is a real number and x ? 5 and x ? 10}

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