It's 5.4- I just used the calculator on my phone but I would've just done long division if I didn't have a calculator
Answer:
8
Step-by-step explanation:
The equation of the parabola can be represented as

for some constant a.
Since the coefficient of x² is 2, a = 2, so

So, the answer is 8.
Answer: We are 95% confident that the mean SPF level of sunscreen used by all Cal Poly students is between 29.0813 and 40.0187.
Step-by-step explanation:
Given : Significance level : 
Sample size : n= 52 , which is a large sample (n>30), so we use z-test.
By using z-value table,
Critical value: 
Sample mean : 
Standard deviation : 
The confidence interval for population means is given by :-

i.e. 

Now, the 95% confidence interval for the ppopulation mean = . (29.0813, 40.0187)
Hence, We are 95% confident that the mean SPF level of sunscreen used by all Cal Poly students is between 29.0813 and 40.0187.
The question is asking to calculate the said coordinates and determine if it is a right triangle or not and state the evidence why and in my own calculation and further understanding about the said coordinates, I would say that its not and the Z coordinates should be (6,1). Hope this would help