Answer:
66 ≤ f ≤100
Explanation
Mean= ( Σ x ) / n
Mean= sum of scores/ number of subject she took
Now, she already too 3 subject which sum is 85+83+86=254
Now we need to know range of score for her to have (grade) a mark between 80 and 89
Now let take the lower limit mean=80
The lowest score she can get is
Mean = ( Σx) / n
80=(85+83+86+f)/4
80×4= 254+f
Therefore, f= 320-254=66
Therefore the minimum score she can have to have a B is 66.
Then, let take the upper limit mean 89. i.e the maximum she can have so that she don't have an A grade.
Mean = ( Σx) / n
89=( 83+85+86+f)/4
89×4= 254+f
f= 356-254
f=102.
Therefore this shows that she cannot have an A grade in the exam. The maximum score for the exam is 100.
There the range of score is 66 ≤ f ≤100 to have a B grade
66 ≤ f ≤100 answer
Since she cannot score 102 in the examination.
N ÷ 6 = 8
hope this helps good luck! =]
Answer:
The expression that converts 8 radians to degree is: degrees = (8 rad)*180/pi
Step-by-step explanation:
To convert any number from radians to degrees we must use the equation below:
degrees = radians*180/pi
Therefore to convert 8 radians to degree we need to apply this value to the formula above:
degrees = 8*180/pi
degrees = 1440/pi
degrees = 458.366º
The expression that converts 8 radians to degree is: degrees = (8 rad)*180/pi
Answer: the second column is 12, then 15, then 6
Step-by-step explanation:
that is some good chocolate milk
