Determine whether or not the equation is quadratic.x(x2 + 6x + 5) = x3

A. Quadratic.
B. Not quadratic.

Answer: A

Mathematics

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Find the second derivative.y = 4x2 + 4x - 3

A. 0 B. 8 C. 8x + 4 D. 4

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Mathematics

Perform the indicated operation and write your answer in standard form.(7 - 7i)(3 - 7i)

A. 49i2 - 70i + 21 B. -28 - 70i C. -28 + 70i D. 70 + 28i

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Mathematics

Provide an appropriate response.Is this relation a function? {(-1, -1), (4, -5), (4, -1)} Why?

A. No; two different ordered pairs have the same second coordinate. B. No; two different ordered pairs have the same first coordinate. C. Cannot be determined with the information given. D. Yes; all ordered pairs have different first coordinates.

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Mathematics

Find the area of the triangle. Approximate values to the nearest tenth when appropriate.Legs with lengths 9 ft and 9 ft

A.  ft2
B. 162 ft2
C. 18 ft
D. 81 ft2

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Mathematics