Answer:
D
Step-by-step explanation:
Frustrated that McClellan had again failed to destroy Lee's army
We have a property that states that adjacent angles in parallelograms are suplementary. So:
x + 45 = 180
x = 180 - 45
x = 135 degrees
Answer: 135 degrees.
3+3+3+4+4+5+6+6+7+9+9=59
59/11=5.36
so your mean is 5.36
Answer:
85.714285714
Step-by-step explanation:
Section A
15 students has a mean score of 80
The Total score of the 15 students =
15 × 80
= 1200
Section B
20 students had a mean score of 90
Total score of the 20 students =
90 × 20
= 1800
Total number of students = 15 + 20
= 35 students
Total scores of the 35 students (Section + Section B) = 1200 + 1800
= 3000
Hence, overall, the approximate mean score for all of the students on the quiz is calculated as
Total score of the students ins section A and B/ Total number of students
= 3000/35
= 85.714285714
Therefore, the approximate mean score for all of the students on the quiz is 85.714285714