Problem ID: PRABDU8Y Find the value of the variable. 7(m +5) = 21 engage
1 answer:
You might be interested in
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%.
Answer:
13.187 meters
Step-by-step explanation:
Basically, there are 24 meters for every 91 steps:
There are x meters for every 50 steps:
Cross multiply
91x = 1200
Divide both sides by 91 to isolate the variable, x
91x/91 = 1200/91
x = 13.186813
Answer:
72 square inches.
Step-by-step explanation:
Convert feet and inches.
36 feet = 36*12 inches
=432 inches
Width of the floor; Converted from feet to inches:
32 feet = 32*12 inches
= 384 inches
Calculate how many times the length (l) has been scaled down.
432 inches of length has been reduced to 9 inches.
Now the length has been scaled down 48 times.
Scale down the width (w) 48 times.
The width of the scale drawing = 8 in
Area of the Scale drawing = Scaled down length * Scaled down width