Answer:
The minimum sample size is 239.
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 Z-table as such z has a p-value of 
.
That is z with a pvalue of 
, so Z = 2.575.
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.
Population standard deviation is equal to 1.5
This means that 
Margin of error of 0.25
This means that 
What's the minimum size of the sample?
Rounding up:
The minimum sample size is 239.
The midpoint formula is x1+x2 over 2 and y1+y2 over 2. When you use it to find the midpoint of (0,-8) and (-4,10), you get (-2,1).
Slope formula is y2-y1 over x2-x1, which will give you -6.
Answer:
x=28
Step-by-step explanation:
16 + 12 = 28
x=28
this is ez
Answer
D.
Step-by-step explanation:
48/4=12
$12 for 1 adult
10-4=6
42/6=7
$7 for 1 child
Answer: is B
Step-by-step explanation:
