Which algebraic expressions are polynomials? Check all that apply. pi x minus StartRoot 3 EndRoot + 5 y x2y 2 – 4x3 + 12y StartFraction 4 Over x EndFraction – x2 – 16 3.9x3 – 4.1x2 + 7.3 It can be dangerous for a pregnant woman to change the litter box.

yes the data was not prsented

step-by-step explanation:

1. when "a" is a root of a polynomial, (x -a) is a factor of it. for the three roots given, the factors of the desired polynomial are (x +2)(x -1/2)(x -3).

in order to make the leading coefficient be negative, we need to multiply this product by a negative number. any negative number will do, but we choose a small (magnitude) value that will eliminate the fraction: -2.

then

f(x) = -2(x +2)(x -1/2)(x -3) = -(x +2)(2x -1)(x -3)

= -(2x² +3x -2)(x -3)

= -(2x³ -3x² -11x +6)

f(x) = -2x³ +3x² +11x -6

2. a graph created by the desmos on-line graphing calculator is shown, and the zeros are highlighted.

3. as indicated in part 1, the multiplier of this equation can be anything and the zeros will remain the same. you want a negative leading coefficient, so the "anything" is restricted to any of the infinite number of numbers that will make that be the case.

b

step-by-step explanation:

write an equation for the line of best fit. then predict the number of milk cow operations in the year 2005.