Answer:
2.1
Step-by-step explanation:
Use the equation
Sum of elements = average x number of elements
sum = (6)(4)
sum = 24
Add up the numbers we know: 3.4 + 10.7 + 7.8 = 21.9
24 - 21.9 = 2.1
This means the fourth number is 2.1
Quick answer I don't think this has an answer.
If you take the cos-1(2 sqrt(2)) your calculator should have a fit. Let's check that out. Mine certainly does. So there is something wrong with the question. If there is something to add in please do it and I will it least put an answer in the comments. As it stands, nothing will work.
If you put your calculator in radians, you will get an answer but it will not be anything resembling the choices you've listed.
If you meant sqrt(2) / 2 that would give 45o. Put it in your calculator like this 2 ^ 0.5 divided by 2 = 0.707
Cos - 1 (0.707) = 45
Answer:
The answer is 1 or infinite solutions
Step-by-step explanation:
When you plug in the value of -5.5 into the equation, you will eventually end up with -17.5=-17.5, making the answer infinite or 1.
Round all of the numbers to the nearest 10 then solve the problem like normal
Answer: 34.3%
Step-by-step explanation:

To find the percent, divide then multiply by 100:
