To find the area of a trapezoid, Dylan used the formula A=1/2(b1+b2)h The base have lengths of 3.6cm and 12 1/3cm the height of the trapezoid is √ 5 cm. Why is it irrational

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18

step-by-step explanation:

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8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a