Answer:
y=0
Step-by-step explanation:
Rewrite Evaluate Powers:
3![3^{2y-1}+3^{-1}+2*3^{y}*3^{-1}=1](https://tex.z-dn.net/?f=3%5E%7B2y-1%7D%2B3%5E%7B-1%7D%2B2%2A3%5E%7By%7D%2A3%5E%7B-1%7D%3D1)
Calculate:
![(3^{y})^{2}*\frac{1}{3} +2*3^{y}*\frac{1}{3}=1](https://tex.z-dn.net/?f=%283%5E%7By%7D%29%5E%7B2%7D%2A%5Cfrac%7B1%7D%7B3%7D%20%2B2%2A3%5E%7By%7D%2A%5Cfrac%7B1%7D%7B3%7D%3D1)
Solve using substitution:
![t=3^{y}](https://tex.z-dn.net/?f=t%3D3%5E%7By%7D)
Solve the equation for t:
t=-3
t=1
Substitute back to t=3^y
3^y=-3
3^y=1
y∉R
![3^{y}=1](https://tex.z-dn.net/?f=3%5E%7By%7D%3D1)
y=0
complete question
the probability of taking a freshman seminar, if a student is a science major, is:
a) a total probability.
b) a conditional probability.
c) a complete probability.
d) a joint probability.
Answer:
B. Conditional probability
Step-by-step explanation:
In this given question, what we ant to do is to find the probability thst a student who is a science major is taking a freshman seminar. This clearly a case of conditional probability.
In a conditional probability, we are trying to find out the probability of an event occurring given that another event has already occurred. since the student is a science major, the probability of the student taking a freshman seminar is to be determined.
Answer:
4c - 2
Step-by-step explanation:
Add up all the terms to find the perimeter.
2c + 2(c - 1)
2c + 2c - 2
4c - 2
Therefore, the perimeter is 4c - 2.
Answer:
25
Step-by-step explanation:
Answer:
Third one is correct because it says it must be more than 2 not 2 or more.
The one you choose would be like, it must be 2 or more.
Step-by-step explanation: