<h2>
Answer:</h2>
Variance
<h2>
Step-by-step explanation:</h2>
The standard deviation is related to the variance. The standard deviation measures the variation or dispersion of a set of data and is represented by the Greek letter sigma 
, while the variance measures how far a set of numbers are spread out from their average value. The variance is obtained by squaring the standard deviation, so the variance can be found as 
Answer:
7 * 9 = 63
63 for when both of the triangles are combined, 31.5 for one triangle.
Rectangle = 18 * 22 = 396
396 + 63
459 cm^2
In this question, there is nothing complicated. only thing that needs to be done is to convert 30 liters into milliliters. For this purpose it is important to know the number of milliliters in 1 liter. then the problem becomes very easy to solve.
1 liter = 1000 milliliters
then
30 liters = (1000/1) * 30 milliliters
= 1000 * 30 milliliters
= 30000 milliliters
So from the above deduction we can conclude that the third option of 30000 is the correct option,. i hope there is nothing uncomplicated in the procedure for you to understand.
Answer:
42 feet
Step-by-step explanation:
1) remeber how 1 foot=12 inches
we need to find "x" feet for 144 inches
so
2) cross multiply
144=12x
divide both sides by 12
12=x
so 144 inches is 12 feet, we need to do the exact same thing for the width
108=12x
9=x
the length is 12 feet and width is 9 feet
to find perimeter:
2(l)+2(w)
2*12+2*9
24+18=42
Hope this helps!
