Answer:
Standard Deviation = 5.928
Step-by-step explanation:
a) Data:
Days Hours spent (Mean - Hour)²
1 5 61.356
2 7 34.024
3 11 3.360
4 14 1.362
5 18 26.698
6 22 84.034
6 days 77 hours, 210.834
mean
77/6 = 12.833 and 210.83/6 = 35.139
Therefore, the square root of 35.139 = 5.928
b) The standard deviation of 5.928 shows how the hours students spend outside of class on class work varies from the mean of the total hours they spend outside of class on class work.
A. assuming the sales tax is already added to the 72.60 all you have to do is add 20%
Answer:
25%
1/4
Step-by-step explanation:
There are 40 beans in total. Only 10 of those are orange and lemon flavored.
Earth diameter = 12,750 km
Earth radius = 6,375 km
Sphere Surface Area = <span> 4 • <span>π <span>• r²
</span></span></span>Sphere Surface Area = 4 * 3.141<span>59 * 6375^2
</span>Sphere Surface Area = 4 * 3.14159 *
<span>
<span>
<span>
40,640,625
</span>
</span>
</span>
<span>
<span>
<span>
Earth's Entire </span></span></span><span>Surface Area = 510,704,724 square kilometers
Surface NOT covered by water = </span><span>510,704,724 * .3
</span>Surface NOT covered by water =
<span>
<span>
<span>
153,211,417</span></span></span><span> square kilometers</span>
To prove two equations have infinite solutions, you have to prove that those two equations are the same equations, but in a different form.
For example: Prove the equations are infinite
5y=2x+7
10y=4x+14
If you multiply the first equation by 2, and substitiute any of the numbers, you will get 0=0
