add the following polynomials

4x² - 6x + 2

Step-by-step explanation:

Adding the like terms, that is

x³(2 + 1 - 3) + x²(-4 + 6 + 2) + x(6 - 8 - 4) + (- 3 + 12 - 7)

= 0 + 4x² - 6x + 2

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

range =5

step-by-step explanation:

to find the range, we take the largest value and subtract the smallest value.

the largest value is 5

the smallest value is 0

the range is 5-0   =5