Answer:
the correct answer is : option c)infinitely many
EXPLANATION:
infinite lines pass through a point . so, infinite solution is the correct answer
Answer:
30 is 60% of 50.
Step-by-step explanation:
30 ÷ 60% = 50
Given:





To find:
The variance. of combined set.
Solution:
Formula for variance is
...(i)
Using (i), we get




Similarly,




Now, after combining both sets, we get




Therefore, the variance of combined set is 15.4.
Good luck my G. I gotta answer 2 questions so I can post pics of my test