Hello I have to right 24 characters but I need some more questions lol but 24
Answer: 
Step-by-step explanation:
Given : Sample size :
, which is a small sample (, 30) so we use t-test.
Sample mean : 
Standard deviation : 
Significance level : 
Critical value : 
The confidence interval for population mean is given by :-

Hence, a 95% confidence interval for the population mean
= 
We need to find a tree such that the angle of elevation from the end of the shadow to top of the tree is 40 degrees.
The length of the shadow is the adjacent side and is 35.
The height of the tree is the opposite side. Let it be x.
Tan ratio = opposite/adjacent
tan(40) = x/35
x = 35*tan(40) = 29.37
Answer: Height of the tree is 29 feet
Answer:
4 packages
Step-by-step explanation:
450 can be divided by 100 4 whole times, the extra cards cannot be added into a package