Answer:
4$
Step-by-step explanation:
Answer:
7x for the first one and −5x^8+12 for the second one
Step-by-step explanation:
please mark me brainliest :)
Yes it’s a regular polygon I Think
Answer: 2.508
Step-by-step explanation:
As per give , we have
Sample size : n= 23
Degree of freedom : df= n-1=22
significance level : 
Since , the sample size is small (n<30) and population standard deviation is unknown.
So , we use t-test.
For confidence interval , we find two-tailed test value.
Critical t-value : 
[using students's t-critical value table]
Hence, the critical value that should be used in constructing the confidence interval = 2.508
Answer:
ow sorry i can't understand:( btw thank you for using brainly:))