Answer:
Emily got 7x
Liam got 2x
7x = 2x + 80
5x = 80
x = 16
Liam got 32, <u>Sarah got 48</u>, and Emily got 112
Step-by-step explanation:
8/20 is greater than 2/10. If you were to make the denominators the same, by mulipling 2x2 and 10x2, you would get 4/20, which is less than 8/20.
Answer:
a) 
b) The should sample at least 293 small claims.
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so , which means that the answer of question a is z = 1.645.
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
(b) If the group wants their estimate to have a maximum error of $12, how many small claims should they sample?
They should sample at least n small claims, in which n is found when
. So
The should sample at least 293 small claims.
Answer:
- Angle E corresponds to angle L
- The two triangles are similar
Step-by-step explanation:
<u>Angle E corresponds to angle L</u> because <u>the two triangles are similar</u> (and we know this becuase corresponding sides are proportional.
Answer:
Step-by-step explanation:
