Factor the polynomial completely using the trial and error method.8y2 + 36y - 20

A. prime
B. (8y - 4)(y + 5)
C. 4(2y - 1)(y + 5)
D. 4(2y + 1)(y - 5)

Answer: C

Mathematics

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Find the product of the given complex number and its conjugate.8 (cos (40°) + i sin (40°))

A. 128 (cos (40°) + i sin (-40°))
B. 8
C. 128
D. 8 (cos (40°) + i sin (-40°))

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Mathematics

Find the mode(s) for the given sample data. 7.1, 7.41, 7.56, 7.1, 7.88, 7.99, 7.62

A. 7.523 B. 7.56 C. 7.1 D. 7.41

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Mathematics

Multiply and simplify if possible.( + )

A.  + 
B.  + 
C. 17 + 
D. 51

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Mathematics

Provide an appropriate response.The population of a small country is 8,714,000. Write this number in scientific notation.

A. 8.714 × 105 B. 8.714 × 104 C. 8.714 × 106 D. 8.714 × 10-5

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Mathematics