Here is my solution to this question worked out on paper:
PLEASE HELP!!!!!!
2 answers:
Answer:
Option 1 and 3 - 1.3 seconds and 3.2 seconds
Step-by-step explanation:
Given : The equation that models the height above or below equilibrium in inches, h, of a spring over time in seconds, t, is .
To find : At which times will the spring be at a height of 20 in. above equilibrium?
Solution :
We have given,
The equation that models the height above or below equilibrium in inches
We have to find at h=20 inches the time of spring.
We show it graphically,
Plot the graph of the model
Then, Substitute h=20
The points of their intersections are the solution of the model.
The intersection points are (1.831,20), (3.169,20) and many more.
From the given options,
The time are 1.3 seconds and 3.2 seconds.
Therefore, Option 1 and 3 are correct.
Refer the attached figure below.
You might be interested in
Answer: e. .0950
Step-by-step explanation:
Let X be the number of people that can be cure from disease.
Since each people independently has a 40% chance of contracting the disease.
So ,
A hospital has the capacity to handle at most 8 cases of the disease.
Binomial distribution formula :
Then , the probability that the hospital’s capacity will be exceeded
Hence, the probability that the hospital’s capacity will be exceeded is e. .0950.
Thus , the correct option is e. .0950.