I would say B but Im not sure
Step-by-step explanation:
since all angles add up to 180:
(8x-1)+(3x+4)+(3x+9)=180
add like terms:
14x+12=180
x=12
Hope that helps :)
Answer:
2.542
Step-by-step explanation:
Given the data :
Customer Pre-training Survey, x1 __Post-training Survey, x2 __ difference, d = (x2-x1)
A 6 8 2
B 5 5 0
C 10 10 0
D 7 10 3
E 6 8 2
F 5 6 1
G 2 8 6
This is a paired test as each subject has two different data values :
Difference in score, d :
dbar = Σd / n
dbar = (2+0+0+3+2+1+6) /
dbar = 14 / 7
dbar = 2
Standard deviation of d ; Sd = √[Σ(d - dbar)²/n-1]
Using calculator ; Sd = 2.082
Test statistic = dbar ÷ (Sd/√n)
Test statistic = 2 ÷ (2.082 / 7)
Test statistic = 2 ÷ 0.7869220
The statistic = 2.5415
Its hourly rate of Jillian is 12 hours.
Here we have to find the hourly rate.
Let h be the hourly rate. As it is given that overtime is a time and a half rate.
So the overtime hour is 1.5h.
The total amount Jillian get is $516.
So from this, we get an equation:
40h + 2(1.5h) = 516
40h + 3h = 516
43h = 516
h = 12
Therefore we get the hourly rate as 12.
To know more about the equation refer to the link given below:
brainly.com/question/14107099
#SPJ4
Answer:you round up the thousand number
Step-by-step explanation:186432 round up to 190000
