Answer:
lol you've asked like 10 probability questions in 20 minutes i wonder what chapter you're studying
Step-by-step explanation:
Answer:
n+7
Step-by-step explanation:
Sum means add, so it's just n added to 7:
n+7 :)
Sorry i cant see the picture so well
Answer:
Length = 12 inches, height = 3 inches
Step-by-step explanation:
First, you have to set up a proportion. 2/7, x/42.
Then, you cross multiply and get the setup of 84=7x
Finally, you divide 84 by 7 and get 12.
12 is the length, and there is no other answer that has 12 in the height. You could just do the same proportion to get 3, though.
Answer:
720
Step-by-step explanation:
nPk = n!/(n-k)!
10P3 = 10!/(10-3)! = 10!/7!
= 10·9·8 = 720
