$55 for 5 hours, first I divided 22 by 2 and got 11 so then I multiplied 11 times 5 to get 55. Hope this helps :)
Answer:
Step-by-step explanation:
From the question we are told that:
Population mean 
Population standard deviation 
Sample size 
Generally the equation for Standard error is mathematically given by
Answer:
D
Step-by-step explanation:
If those two functions are the factors of a quadratic, then each of them can be equated to 0 to find the roots. Sometimes the roots are called the zeros.
2x - 5 = 0 Add 5 to both sides
2x - 5 + 5 = 0 + 5 Combine
2x = 5 Divide both sides by 2
2x/2 = 5/2
x = 5/2
You don't really have to find the other factor's 0 point. There is only 1 option that makes x = 5/2. On a test, it is important to take short cuts and save time. I'll find the other root anyway because this is not a test.
3x + 4 = 0 Subtract 4 from both sides
3x + 4-4 = 0 - 4 Combine
3x = - 4 Divide both sides by 3
3x/3 = - 4/3
x = - 4/3
X/5=x-5
x = 5x-25
4x = 25
x=25/4
Answer:
Step-by-step explanation:
1.Turn the 9 into a fraction
2.factor the bigger numbers.
3.Cancel out the common factor(3)
4.multiply across
