Answer:8
Step-by-step explanation:
We have given test consists of 40 multiple choice questions having five options for each question.
Suppose there is one correct answer to each question
therefore probabilty of getting a correct answer on making a guess is
i.e. 1 out of 5 questions is correct
Using binomial distribution
where n=40 p=
mean of binomial distribution is np
therefore mean of no of correct answers=
=8
Answer:
y = x+6
Step-by-step explanation:
You can find an equation by using the 2-point form of the equation for a line:
y = (y2 -y1)/(x2 -x1)·(x -x1) +y1
Filling in the given values, we have ...
y = (9 -5)/(3 -(-1))·(x -(-1)) +5
y = (4/4)(x +1) +5 . . . . simplifying a bit
y = x +6
Answer:
B. Doubled
Step-by-step explanation:
The formula to find the circumference of the circle is
Now our problem says that the radius is doubled. Hence the new radius is 2r
Hence the new circumference will be
Hence our circumference gets doubled.
Let c > 0. Then split the integral at t = c to write
By the FTC, the derivative is