Step-by-step explanation:
hope this helps theirs 3 pictures
Answer:
yeess
Step-by-step explanation:
Cross multiply...
Thus,
x(x+4)=(x+12)(x+8)
expand...
x^2+4x=x^2+8x+12x+96
Simply both sides of the equation.
x^2+4x=x^2+20x+96
simply further by adding ask like terms...
-16x=96
Solve for x by making x the subject.
therefore
x=-6.
Answer: 83
Step-by-step explanation:
The confidence interval for population mean is given by :-

Given : The student obtained the following 95% confidence interval (in grams) for the population mean, (862,1028).
Here,
Lower limit of the confidence interval :
(1)
Upper limit of the confidence interval :
(2)
Subtracting (1) from (2) , we get

Hence, the margin of error = 83
Answer:
610
61*10 = 610
You can then subtract that from 742.