Answer:
Step-by-step explanation:
Given that a student takes a 20-question, multiple-choice exam with five choices for each question and guesses on each question.
Since each question has 5 choices p = probability for success = pr for getting correct guess = 0.2
Each question is independent of the other and q= pr for failure =1-0.2=0.8
Hence we have X, no of correct questions in the test is binomial n =20 and p =0.2
the probability of guessing at least 15 out of 20 correctly
=
<0.00001
So we can consider this event unlikely to occur because the probability is almost zero.
Okay so the answer would be D
I don't know if you know any of this but I'm gonna do my best to explain it to you
So when you have coordinates, lets say ( 3,2) Your three is going to be on your x- axis and the 2 on the y-axis. (the x goes straight across, the y is up and down) When graphing you would count over right 3 on the x and the once you hit that you would go up 2, that is where your point goes. Same with negative if you had (-3,2) you would go left ( since it is negative) 3 and up 2. The way I figured your question out was I just put in all the coordinates and if one of them wasn't on the line, it isn't it. D has all its coordinates on the line. It takes a little to understand where the negatives and positives are on the graph and which way to go but just practice, it becomes fun after a while
I'm sorry if that didn't make much sense, if you were right here i could show you easier but I hope it helps somehow :)
<h3> - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - -
</h3>
➷ Hank charges $75 for a visit plus $45 per hour.
Therefore, for an hour, Hank would charge $120 as 75 + 45 = 120
Mr Fixit:
As it is for one hour, we look at the first function because the time is 'less than or equal to an hour'.
Mr Fixit would charge $95 for an hour.
Therefore, Hank charges $25 more than Mr Fixit.
➶Hope This Helps You!
➶Good Luck :)
➶Have A Great Day ^-^
↬ Hannah ♡
Answer:
3.125
Step-by-step explanation:
i hope this helps
Answer: 5
Step-by-step explanation:
The reason being that if you set a number to a power, thats how many times you multiply it my itself. So if it is one five, the the answer is five.