Which two values of x are roots of the polynomial below?

x^2 + 3x + 5

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i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true