<h2>T
he required "option c) 4.3" is correct.</h2>
Step-by-step explanation:
Given,
Total number of multiple choice questions = 17
To find, the mean for the number of correct answers = ?
Each question has four possible answers.
If guessing at random:
There is only one in four chances.
= 25 % chance of getting a particular question right.
This is the same probability for each of the 17 questions.
If there is a 25 % chance of getting any given question right.
There are 17 questions.
∴ The total number of questions you will expect to get right =
25 % × 17
= 
= 
= 4.25
≈ 4.3
∴ The mean for the number of correct answers = 4.3
Thus, the required "option c) 4.3" is correct.
Answer:
1/64, 2/128
Step-by-step explanation:
4 -³
= 1/4³
= 1/(4×4×4)
= 1/64
We can also multiply the numerator and denominator by 2
(1×2)/(64×2)
= 2/128
I hope this was helpful, please rate as brainliest
There's no real need to rationalize the denominator in the second term, since

and this term is ready to be integrated via the power rule. Rationalizing doesn't really help here.
Answer:
bruh
Step-by-step explanation:
thank u