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Which are factors of x2 - 4x – 5? Select two options.
(x - 5)
(x-4)
(x-2)
(x + 1)
(x + 5)

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120

Solve for the equation x. 2x + 22 = 4(x + 3)