Solve each system of linear equations by substitution x+y=3 -x+y=5
1 answer:
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Answer and Step-by-step explanation:
| \
| \
| \
| \
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100 ft. | \
| 2 \
|_________\
x
Use tangent to find the x.
tan(2) =
Use a calculator to evaluate.
= 2863.6253
So, the boat is 2,863.63 feet from the shore.
#teamtrees #WAP (Water And Plant)
We have to find midpoint M of the diagonal AC (or BD, there is no difference) so:
Answer:
The 99% confidence interval is
Step-by-step explanation:
From the question we are told that
The sample size is n = 100
The sample mean is
The population standard deviation is
From the question we are told the confidence level is 99% , hence the level of significance is
=>
Generally from the normal distribution table the critical value of is
Generally the margin of error is mathematically represented as
=>
Generally 95% confidence interval is mathematically represented as
=>
=>