Answer:
Hi there!
Your answer is:
996 students were apart of this survey!
Step-by-step explanation:
3 out of 4 students means that 75% of students prefer the assemblies be held on Friday.
If 75% = 747 students then:
/75
1% = 9.96 students
×100
100% = 996 students
I hope this makes sense!
Y=1x+5 I think is the answer. Graph both of them to make sure I'm right
Answer:
x = 53
Step-by-step explanation:
The two angles identified are alternate exterior angles. Since the lines are parallel, alternate exterior angles are equal.
2x+15 = 3x-38
Subtract 2x from each side
2x-2x+15 = 3x-2x-38
15 = x-38
Add 38 to each side
15+38 = x-38+38
53 = x
a. Use the inclusion/exclusion principle.
![P(A_1\cap A_2)=P(A_1)+P(A_2)-P(A_1\cup A_2)=0.55+0.65-0.80=0.40](https://tex.z-dn.net/?f=P%28A_1%5Ccap%20A_2%29%3DP%28A_1%29%2BP%28A_2%29-P%28A_1%5Ccup%20A_2%29%3D0.55%2B0.65-0.80%3D0.40)
b. By definition of conditional probability,
![P(A_2\mid A_3)=\dfrac{P(A_2\cap A_3)}{P(A_3)}=\dfrac{0.50}{0.70}\approx0.7143](https://tex.z-dn.net/?f=P%28A_2%5Cmid%20A_3%29%3D%5Cdfrac%7BP%28A_2%5Ccap%20A_3%29%7D%7BP%28A_3%29%7D%3D%5Cdfrac%7B0.50%7D%7B0.70%7D%5Capprox0.7143)
Answer:
e f f g
3 7 2 3
6 14 14 21
e;g=6:21
e : g=2 : 7
Step-by-step explanation: