Which statement about the binomial expansion of (x2 – x)9 is true?

the first term is –x18.

the second term is 9x17.

the third term is 36x14.

the last term is –x9.

Option D.

Step-by-step explanation:

The given expression is

Here, n=9, p=x^2 adn q=-x.

kth term in the binomial expansion of is

First term of the binomial expansion of is

Second term of the binomial expansion of is

Third term of the binomial expansion of is

Last or 10th term of the binomial expansion of is

Therefore, the correct option is D.

if he has no friends he cant give them out to his friends

step-by-step explanation:

no friends = cant give anything out

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.