Answer:
-20
Step-by-step explanation:
Replace X by 3
f(3) = -2(3)^2+ (3)-5 = -20
Since we are solving for n you have to isolate the n. Therefore, you want all the variables with an n in it on one side and all the variables without an n on the other side:) :
4k+3= -mn+n (There were a change in signs because for example you moved the -3 to the other side, therefore it can only be a negative on one side so now you have to change the sign to a positive:) hope you got that)
That would've been your answer because you cannot do anything else...Hope this helped :)
The statement that best describes Georgia’s Barrier Islands is; A: They protect the coastline during storms.
<h3>What is the correct statement about the place?</h3>
Barrier islands are called “barrier islands” due to the fact that they are good means of creating barrier between the mainland and the ocean.
Now, these barrier islands tend to shelter and protect the mainland from the powerful forces of wind, waves, and other natural disasters. This they do by;
- Sheltering the estuaries that form behind the barriers.
- Allowing marshes to build up in the quiet waters of the sound.
- Filtering of the pollutants that come in from mainland rivers by the marshes.
- Providing valuable habitats for water animals and others in that ecosystem.
- Serve aesthetic purposes
Barrier islands are a very much valuable resource. Despite the fact that they constantly change and may become badly eroded, they can still rebuild if left alone.
Thus, we can conclude that statement best describes Georgia’s Barrier Islands is that they protect the coastline during storms.
Read more about Correct statement at; brainly.com/question/25800832
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4 feet? 20/5=4? Not too sure
Answer:
1,082
Step-by-step explanation:
The sample size n in Simple Random Sampling is given by
where
z = 1.645 is the critical value for a 90% confidence level (*)
s = 2 is the estimated population standard deviation
e = 0.1 mm points is the margin of error
so
rounded up to the nearest integer.
So the manufacturer should test 1,083 parts.
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(*)This is a point z such that the area under the Normal curve N(0,1) outside the interval [-z, z] equals 10% = 0.1
It can be obtained in Excel with
NORMINV(1-0.05,0,1)
and in OpenOffice Calc with
NORMINV(1-0.05;0;1)
