4. Let x, y and z be integers between 0 and 9. How many ways can x, y, z be chosen such that xyz is odd?
5. What conditions on n, k need to hold so that n(n −1) ···(n −k + 1) =n!
(n−k)!is a true statement? Write this as a theorem and prove it.
6. Calculate ∫∞0xne−xdx for n = 0, 1, 2, 3, 4 (start with n = 0, and then
do integration by parts for n = 1 etc.) Give a formula for this integral
for n an arbitrary nonnegative integer. (You do NOT need to prove
this, just give a formula.)

welll its a very hard question but ill

step-by-step explanation:

first you take the 6 dollars and add 10 to it then add the 50 to that then multiply by 8 with xy and your answer will be

hope this

found it xd it ok yt

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

6.5

step-by-step explanation:

you said it was in the question

~courtney