Which of the following are polynomial functions?
Check all that apply.
A. F(x) = (3/5)x^4 - 18x^3 + x^2 - 10x + 3.5 B. F(x) = 2x^2 + 5x -3
C. F(X) = -x^3 + 5x^2 + 7x - 1
D. F(X) = -x^3 + square root of -x
E. Fx) = 3x^-3 - 19

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

45

step-by-step explanation:

to find a percentage, add a decimal in front and multiply it by the other number.

.25 times 180= 45

4

step-by-step explanation:

im pretty sure it's 4 beacsue 8/2 equals 4

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14