Writetheanswerwithpositiveexponents xy4 2 18 x3 y a 1

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Unformatted text preview: + 81y2 Simplify. Write the answer with positive exponents. xy4 - 2 18) x3 y A) 1 8 y10 x B) 18) y6 x4 C) 2 x4 y6 D) 1 5 y9 x 19) 3 - 1 x- 4 y- 4 - 4 z-2 A) z8 81x16y16 19) B) 81x16y16 z8 C) z8 3x16y16 D) 3x16y16 z6 Perform the indicated operation. Write the answer in scientific notation. 270,000,000,000 20) 0.000003 A) 24 × 1015 B) 24 × 1016 C) 9 × 1015 20) D) 9 × 1016 Solve. Write the answer in scientific notation. 21) If the mass of an object is 2.45116 × 10- 8 tons and its density is 4.66 × 10- 7 tons per cubic foot, find M the volume of this object. (Use the formula D = .) V A) 52.6 × 10- 2 cubic feet C) 5.26 × 10- 3 cubic feet 21) B) 5.26 × 10- 1 cubic feet D) 5.26 × 10- 2 cubic feet Find the degree of the polynomial and indicate whether the polynomial is a monomial, binomial, trinomial, or none of these. 22) - 8x2 + 8x2 y + 7 22) A) degree 2; trinomial C) degree 3; trinomial B) degree 5; trinomial D) degree 2; none of these Perform the indicated operations. 2 2 1 1 4 1 23) - x2 - x + + x2 - x + 3 5 3 3 5 2 23) 1 6 5 A) - x4 - x2 + 3 5 6 1 6 5 B) - x2 - x - 3 5 6 23 6 5 x + 15 6 1 6 5 D) - x2 - x + 3 5 6 C) - Multiply. 24) (x2 + 12y)(x2 - 12y) A) x4 - 24y2 24) B) x4 - 144y2 D) x4 + 24x2 y - 144y2 C) x4 - 24x2 y - 144y2 25) (x - 3)(x + 1)(4x - 3) A) 4x3 - 6x2 - 11x + 9 25) B) 4x3 + 9 C) 4x3 + 11x2 + 6x + 9 D) 4x3 - 11x2 - 6x + 9 Factor the polynomial completely. 26) 24x9 y9 - 32x7 y5 + 64x3 y2 26) A) 8x3 y2 (3x6 y7 - 4x4 y3 + 8) C) 8x3 (3x6 y9 - 4x4 y5 + 8y2 ) B) x3 y2 (24x6 y7 - 32x4 y3 + 64) D) 8(3x9 y9 - 4x7 y5 + 8x3 y2 ) 3 27) xy - 4yz + 11x - 44z A) (y - 4)(x + 11z) 27) B) (y + 4)(x - 11z) C) (y + 11)(x - 4z) 28) x2 - x - 35 A) (x - 35)(x + 1) C) (x + 5)(x - 7) B) (x - 5)(x + 7) D) prime polynomial 29) 20x2 + 7x - 6 A) (20x + 3)(x - 2) C) (4x - 3)(5x + 2) D) (y - 11)(x + 4z) B) (4x + 3)(5x - 2) D) prime polynomial 28) 29) 30) 49x3 y - 84x2 y2 + 36xy3 A) xy(7x - 6y) 2 30) B) (49x2 y + xy)(x + 36y2 ) D) xy(7x + 6y) 2 C) xy(7x - 6y)(7x + 6y) 31) 72x2 y - 98y 31) A) 2y(6x + 7)2 C) 2y(6x - 7)2 B) 2y(6x + 7)(6x - 7) D) prime polynomial 32) 512y3 + 343 32) A) (512y - 7)(y2 + 56y + 49) B) (8y - 7)(64y2 + 56y + 49) D) (8y + 7...
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This note was uploaded on 01/19/2014 for the course MATH N/A taught by Professor N/a during the Fall '11 term at Bingham University.

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