Answer:
89/100
Step-by-step explanation:
The average weighted by the number of students is ...
(90(0.90) +10(0.80))/100 = (81 +8)/100 = 89/100
It’s 2-1=1
1-1= 0
0-1=-1
We -1
Answer:
L = √(5² + 10² + 7²) = √174 in
Step-by-step explanation:
increase in x results in the decrease in y