Answer:
b
Step-by-step explanation:
Answer:
there is a 50/50 chance that in the group there are all girls : )
Step-by-step explanation:
Answer:
a. cos(160), cos(120), cos(80), cos(40)
b. sin(-90), sin(-120), sin(30), sin(80)
c. cos(130), cos(240), cos(-30), cos(380)
Answer:
First let's measure how many ways can be the announcement done.
We have 9 people. So 9 options for first person and 8 option for the second.We get 72 possibilities. Since it doesn't matter a is with b or b is with a the possibilities go down to 36.
Now let's count how many ways we can make 2-girl pair
we can 5 options for the first person and 4 options for second. The same way divide this by 2 we are left with 10 possibilities.
So we got that there are 36 pairs possible.
At least find the probability divide the wanted outcome by the possible numbers of outcomes. 10/36=5/18
Answer 5/18
Answer:
m=2
c=1
Step-by-step explanation:
y=mx+c
m=slope
c=y-intercept
y=<u>2</u>x+<u>1</u>