<span>8 1/5 ( 4 2/5 + 3 3/10)
= </span><span>8 1/5 ( 4 4/10 + 3 3/10)
= 8 1/5 * 7 7/10
= 41/5 * 77/10
= 3157/ 50
= 63 7/50
</span>
1-49m^2 Factored is (1+7m)(1-7m)
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
Answer:
80cm by 60cm
Step-by-step explanation:
For every inch is to 40 cm.
Length = 2in*40=80 cm
Width. =1.5in*40=60cm