Answer: 
<u>Step-by-step explanation:</u>
"At least one girl" means P(1 girl) + P(2 girls) + P(3 girls) or 1 - P(all boys)
I will use the latter: 1 - P(all boys)
P(all boys) = 

Answer: x=2
Step-by-step explanation:
if u plug in the value of x=2 into the equation both sides equal -22/5
For the answer to the question above,
Let's use the formula for finding the volume.
(pi) x 2/9 x 2/9 x r^2
(pi) x <u>2</u> x <u>2</u> x r^ 2 x 4h
9 9
simplify and solve.
The the will be
<u>16 </u>(pi) r^2h
81
I hope I helped you in my answer
Answer:
-4 is the anwser
Step-by-step explanation:
In SOHCAHTOA you want to use cosine (CAH)
Cos75 = x/30
Use algebra to get x by itself.
So type into your calculator:
30cos(75) which equals 7.76