The equation at the right has been incorrectly solved, the answer to this is b = -7
Answer:
5/−1
Step-by-step explanation:
Slope =y2−y1x2−x1
7−2−4−−3
5/−1
Answer: A. 85.7
Step-by-step explanation:
Given : Two sections of a class took the same quiz.
Section A had 15 students who had a mean score of 80, and Section B had 20 students who had a mean score of 90.
We know that , 
Then , for section A :


Similarly in Section B, 
Total scores = Sum of scores in sec A+Sum of scores in sec B
=1200+1800=3000
Total students = Students in sec A +Students in sec B
=15+20=35
Now , the mean score for all of the students on the quiz =

Hence, the approximate mean score for all of the students on the quiz = 85.7
Thus , the correct answer is option A. 85.7.
Answer:
3/12
Step-by-step explanation:
3*3*5 is equal to 45 AND its factors are prime.
:)