Complex Numbers Answers

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Which of the following formulas, when evaluated using rational values for the variables, will result in an irrational number?

the formula for the area of a circle

the formula for the area of a trapezoid

the formula for the area of a triangle

the formula for the area of a rectangle

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Use the chart to multiply the binomial by the trinomial.

15y3 + 17y2 + 22y + 15

6y3 + 17y2 + 22y + 15

6y3 + 20y2 + 22y + 15

6y3 + 17y2 + 22y + 25

Iliana multiplied 3p – 7 and 2p2 – 3p – 4. Her work is shown in the table.

6p3 + 23p2 + 9p + 28

6p3 – 23p2 – 9p + 28

6p3 – 23p2 + 9p + 28

6p3 + 23p2 – 9p + 28

The sum of two polynomials is 8d5 – 3c3d2 + 5c2d3 – 4cd4 + 9. If one addend is 2d5 – c3d2 + 8cd4 + 1, what is the other addend?

6d5 – 2c3d2 + 5c2d3 – 12cd4 + 8

6d5 – 4c3d2 + 3c2d3 – 4cd4 + 8

6d5 – 4c3d2 + 5c2d3 – 12cd4 + 8

6d5 – 2c3d2 – 3c2d3 – 4cd4 + 8

Which number is irrational?

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