Answer:
add (12/2)^2 to both sides
Step-by-step explanation:
x^2-12x=16
x^2 -12x + (12/2)^2 = 16 + (12/2)^
x- (12/2)^2=52
(x-6)^2=52
Answers:
x= -2 root 3 +6
x= 2 root 3 +6
Answer:
The minimum percentage of noise level readings within 8 standard deviations of the mean is 98.44%.
Step-by-step explanation:
When we do not know the shape of the distribution, we use the Chebyshev's Theorem to find the minimum percentage of a measure within k standard deviations of the mean.
This percentage is:

Within 8 standard deviations of the mean
This means that
. So

The minimum percentage of noise level readings within 8 standard deviations of the mean is 98.44%.
The statement 'of ' represents multiplication.
thus, baby = 1/40 * 120 = 3 tons.
1 ton is 2000 pounds.
Hence, 3 is 6000 pounds.