Find the area of a rectangle with length (x+3) units and breath (x-2 units
1 answer:
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Answer:
From the given picture we can see that , 3 teaspoons = 1 table spoon.....(1)
or 3t=b..(2)
6 teaspoon= 2 tablespoon or 6t=2b
9 teaspoon= 3 table spoon or 9t=3b
Therefore the ratio of teaspoon to tablespoon t:b= 3:1...........(from (1))
Now, 1 tea spoon=..............[divide 3 on both sides of (1)]
or
The equation to show the relation between teaspoons and table spoon is given by (2)
3t=b
Answer:
A sample size of at least 737 specimens is required.
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
Now, find the width M as such
In which is the standard deviation of the population and n is the size of the sample.
In this problem, we have that:
So:
A sample size of at least 737 specimens is required.