x = 5
y = -1
Step-by-step explanation:
from second equation,
by putting the value of y in first equation
- y = -x + 4
- -1 = -x + 4
- -x = -1 -4
- -x = -5
- x = 5
x = 5 and y = -1
Answer:
0.0802
Step-by-step explanation:
Calculation for the p-value
Based on the information given this is a two tailed test
Hence,
p(z< -1.75)= 0.0401
p(z> 1.75) = 0.0401
Now let calculate the p-value
p-value=2* 0.0401
p-value= 0.0802
Therefore If the value of the test statistic z equals 1.75 the p-value will be 0.0802
<u>Headphones</u><u> that go over your ears can also damage your </u><u>hearing</u><u> if you use them too long or play music too loudly.</u>
What is decibel explain with examples?
- A decibel is a unit used to measure how loud something is using a logarithmic formula.
- It is also used to describe the degree of loudness.
- This is an example of when you listen to your music at the loudest volume that your iPod will allow.
- If you use over-the-ear headphones for an extended period of time or listen to loud music, you could end up damaging your hearing.
- They simply pose less of a risk than earphones do: The level of a sound can be increased by 6 to 9 decibels when the source is inside your ear canal, which can result in some major issues.
Learn more about decibel
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Answer:
4590.72
Step-by-step explanation:
All you need to do is multiply 1275.2 by 3 and 3/5, or 18/5. This is 4590.72.
