Often, variability is most usefully expressed in the same units as the original data. That's what <em>standard deviation</em> (square root of variance) does. In situations where that is the case, the variance is useful only for getting to the value of standard deviation.
Answer:
$24
Step-by-step explanation:
James and Sarah's lunches cost $20 each, so the total price of their meal is 20 * 2 = $40.
They tipped their server 20% of $40, so to find 20% of 40 you would multiply:
40 * 0.20 = 8
Add 8 to 40 = $48.
If they shared this lunch price of $48 equally then they each paid half of this price.
48 / 2 = 24
They each paid $24.
Adam is incorrect because if you substitute the value of y (which is 2) on the expression 52-3y=20, the statement is false since 46 is obviously not equal to 20.
52-3(2)=20
52-6=20
46 = 20
FALSE
Answer:
33
Step-by-step explanation:
Assume that each cell on the grid represents one unit. One can use the formula, (
) to find the area of the triangle. One can see that the base of the triangle is, (11), and the height is (6). Substitute in the given values and solve for the area,
Answer:
121.92 cm cubed
Step-by-step explanation:
all you have to do is multiply all 3 measurements to find the simple shapes volume, and then convert to centimeters using the simple 2.54 cm=1 in conversion rate
