Answer:
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Step-by-step explanation:
The sum of all of the exterior angles of any regular polygon is 360 (I'm assuming by decagon you mean a regular dodecagon).
Because the total has to be 360, and a decagon has 10 sides, you divide 360 by 10 to get each exterior angle.
360 ÷ 10 = 36, so each exterior angle of a decagon is 36 degrees.
The mean is often the default measure of center because it includes every data point, ie its more representative. However, if you have outliers then the mean will be skewed toward the outlier. For example, with home prices, very expensive houses will make the mean larger than it should be if you focused on the main cluster of data. This is why the median home price is often measured and reported (rather than the mean home price).
Answer:
Total temperature change = -32.48 degrees
Step-by-step explanation:
Over 11.2 hours, the temperature changed -2.9 degrees each hour.
Total time elapsed = 11.2 hour.
Temperature change per hour = -2.9 degrees
Total temperature change = Total time elapsed x Temperature change per hour
Total temperature change = 11.2 x -2.9 = -32.48 degrees
So temperature is reduced by 32.48 degrees in 11.2 hours.
Total temperature change = -32.48 degrees
<span>f(x)=3x+8 and g(x)=6x+6
(f+g)(x) = f(x) + g(x) = (3x+8) + (6x+6) = 9x + 14
Then (f+g)(−1) = 9(-1) + 14 = 5
f(x)=6x+4 and g(x)=3x+7
(f+g)(x) = f(x) + g(x) = (6x+4) + (3x+7) = 9x + 11
Then (f−g)(1) = 9(1) + 11 = 20</span>
