Answer:
<h2>69.5</h2>
Step-by-step explanation:
Given the confidence interval of the heights of american heights given as (65.3,73.7);
Lower confidence interval L = 65.3 and Upper confidence interval U = 73.7
Sample mean will be the average of both confidence interval . This is expressed mathematically as 

Hence, the sample mean is 69.5
The 82nd term for the sequence would be -4
Now in this scenario, they scored 45 points from three-point baskets. This means they got 15 baskets. Now we can convert this into ratio form and solve using cross multiplication:
5/7=15/x
5x=15*7
x=21
They had 21 three point tries. Hope this helps :) lmk if you need more help.
Answer:
$54.00
Step-by-step explanation:
The original price with a sale of 1/4 off:
80(0.75)= 60
Has a coupon for additional 10% off:
60(0.9)=54
So, $54
3. yes because 15 divided by 5 and 27 divided by 9 both result in the same answer; 3.
4. No because 3/4 is not a whole number, while 4/3 is. For this to be an equivalent ratio, the second number would have to be something like 6/8.