"n choose k" gives you the number of possible unique combinations...
n!/(k!(n-k)!)
n=number of elements to choose from and k=the number of elements that you choose...in this case:
7!/[2!(7-2)!]
7!/[2!5!]
21
There are 21 possible different two question combinations that she can pick.
Answer:a. 2 b. 5/3 c. 3/2 d. 1 e. 1/2 already in order from greatest to least. in rate order of least to greatest e,d,c,b,a
Step-by-step explanation: linear equation formula is y=mx+b. M represents the slope or rate of change.
Interior angle add up to 360, so you add
(a+10) + (3a+10) + (5a-10) + (3a-10) = 12a
12a =360
a= 30
30+10=40
3(30)+10=100
5(30)-10=140
3(30)-10=80
You can double check they're correct by doing 40+100+140+80, which equals 360.
Answer:D. 80
Step-by-step explanation:
all you do is add 40, 14 and 26 from the graph
Solve for s.
p=4s
Flip the equation.
4s=p
Divide both sides by 4.
4s/4=p/4
s=1/4p
