Which polynomial is equivalent to (5x + 7)(3x^2 + 2x)? 3x^2 + 7x + 7 3x^2 + 10x

Question

Which polynomial is equivalent to (5x + 7)(3x^2 + 2x)? 3x^2 + 7x + 7 3x^2 + 10x + 7 15x^3 + 14x 15x^3+ 10x^2 + 14x 15x^3+31x^2+ 14x A bag of marbles contains 8 while, 6 red, blue, and 2 green marbles. If Chantal randomly pulls one marble from the bag, what is the probability the marble is red or green? 4/100 3/100 2/5 1/5 2/3 The following storage tank has a cylindrical lop and a conical bottom. The diameters of the cylinder and the base of the cone are each 30 inches (in.). The height of the cylinder is 35 in., and the height of the cone is 20 in. What is the best approximation of the volume of the tank? (Use pi = 3.14.) 22, 373 in.^3 29, 438 in.^3 38, 858 in.^3 89, 490 in^3 117, 750 in.^3

Explanation / Answer

12.

The polynomial should have:

15 as coeff of x^3
21+10 = 31 as coeff of x^2

So, answer is E.

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