The lines below are perpendicular. If the green line has a slope of 3/4 what is the slope of the red line? Enter your answer as
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
Assuming
What we have to do is replace f(x) with y, swap the locations of x and y, and then solve for y.
Answer:
Total number of points in the test = 100
Total number of items in the test = 40
Let number of items of 2 points be x and number of items of 3 points be y.
Now, using the given information the situation can be represented by using the following equations :
⇒ x + y = 40 .........(1)
⇒ 2x + 3y = 100 .........(2)
The matrix equation is :
By solving the equation (1) and equation (2), we get :
Solution : x = 20 and y = 20
Answer: 0.0688
Step-by-step explanation:
Given : Current research indicates that the distribution of the life expectancies of a certain protozoan is normal with a mean of 43 days and a standard deviation of 10.1 days.
i.e. and
Let x represents the life expectancies of a certain protozoan.
Sample size : n= 25
The probability that a simple random sample of 25 protozoa will have a mean life expectancy of 46 or more days. :-
[using z-value table]
Hence, the required probability = 0.0688