Answer: Apply the percent error formula:
(Experimental-Theoretical)/Theoretical
(45-40)/40
The percent error of her measurement was 12.5%
Equation is 112= 14x
x= 8
mulan worked for 8 hours
Answer:

Step-by-step explanation:
Hey there!
Standard form is what this equation is in
Standard form is this: 
So order to complete the square, you need to take the
term out of the equation, divide it by two, and then square it
In this case, the
term is 8
We need to divide 8 by 2 ---> 4
Then square 4 ---> 16
So now you should add 16 to both sides

Now you can simplify the LHS

Now you subtract 16 from both sides

So this is as far as you can go since you cannot take the square root of a negative number
Ax+by=c
First you'll find the equation of the graphed line in slope-intercept form, y = mx+b, and then from there we'll convert it into standard form, ax+by = c.
102/159 = x/4
34/53 = x/4
34(4) = x(53)
136 = 53x
136/53 = x