Decide whether or not the set is closed under addition.{n ? N: n ? 53}

A. Not closed
B. Closed


Answer: B

Mathematics

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Provide an appropriate response.The primary difference between comprehensive and collision coverage in an automobile insurance policy, is that comprehensive:

A. never involves a deductible B. normally involves a non-accident incident C. all of these apply to comprehensive coverage D. covers injury to a third party

Mathematics

Solve the quadratic equation and express all nonreal complex solutions in terms of i.x2 = 5x - 10

A.
B.
C.
D.

Mathematics

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.5x + 2y + z =-112x - 3y - z=177x - y=12

A. {(1, -5, 0)} B. {(0, -6, 1)} C. {(-2, 0, -1)} D. ?

Mathematics

For the functions f(x) and g(x), determine the domain of (f/g)(x) (the quotient of f and g).f(x) = 3x - 5 , g(x) = 

A. {x ? x is a real number and x ? -11}
B.
C.
D. {x ? x is a real number}

Mathematics