Answer:
0.3
Step-by-step explanation:
Answer:
85.7
Step-by-step explanation:
Given that 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.
Section A total score = 15*80=1200
Section B total score 20*90 = 1800
Overall total score=3000
Overall total students = 15+20 =35
Hence overall mean = 
rounding off to one decimal place
overall mean = 85.7
Answer:
(2, 12)
Step-by-step explanation:
You do it by adding
2 and 0.
4 and 8.
Answer:
<u>1035 feet</u>
Step-by-step explanation:
Taking the tan ratio of the angle of elevation :
- tan 49° = h/900
- 1.15 = h/900
- h = 1.15 × 900
- h = <u>1035 feet</u>