<span>Perpendicular lines are two distinct coplanar lines that intersect to form what type of angle right angle </span>
Answer:
1
Step-by-step explanation:
The constant of proportionality when the equation is y = ax is a.
There is nothing written there so a is assumed to be 1.
If y = 3.443
Then the constant of proportionality is 3.443, which is the value of a.
Answer:
y=Ae^(1.25t)
Step-by-step explanation:
From the expression y=Ae^kt
After two days of the experiment, y = 49 million, t=2
After four days of the experiment, y= 600.25 million, t=4
A is the amount of bacteria present at time zero and t is the time after the experiment (in days)
At t=2 and y =49
49=Ae^2k…………….. (1)
At t=4 and y = 600.25
600.25=Ae^4k………… (2)
Divide equation (2) by equation (1)
600.25/49=(Ae^4k)/(Ae^2k )
12.25=e^2k
Take natural log of both sides
ln(12.25) =2k
2.505 =2k
k=1.25
The exponential equation that models this situation is y=Ae^(1.25t)
Answer:
0.11% probability that you must ask 20 people to find one person without a social networking site
Step-by-step explanation:
We have these following probabilities:
75% probability that a millenial has a profile in a social netwok site.
25% probability that a millenial does not have a profile in a social network site.
What is the probability that you must ask 20 people to find one person without a social networking site?
The first 19 people have a social network site, each with a 75% probability.
The 20th person does not have a profile, with a 25% probability.
So
![P = (0.75)^{19}*0.25 = 0.0011](https://tex.z-dn.net/?f=P%20%3D%20%280.75%29%5E%7B19%7D%2A0.25%20%3D%200.0011)
0.11% probability that you must ask 20 people to find one person without a social networking site
the answer is 36 because 84/7 = 12 12 x3 = 36