Answer:
(507.05, 592.95)
Step-by-step explanation:
Given data:
sample mean = $550, sample standard deviation S = $60.05
95% confidence interval , n = 10
For 95% confidence interval for the mean
mean ± M.E.
where M.E. is margin of error = 
Substituting the values in above equation

= 2.62×18.99
=42.955
= 550±42.95
=(507.05, 592.95)
Answer:
Solve:
(x=44, y=21} I think
Step-by-step explanation:
Use the formula of an area of a tringle:

We have b = 11 yd, c = 24 yd and m∠A = 67°


2x -20 -1 =0
2x -21=0
2x=21
x= 10.5