Answer:
15,235
Step-by-step explanation:
Answer:
3( 73/84 )left over
Step-by-step explanation:
She had 6 gallons in total
2/3+1/4+1/2+5/7=179/84 = 2 ( 11/84)
6/1-179/84 = 325/84 = 3(73/84)
She used 179/84
She have left 325/84
179/84 + 325/84 = 6
With mixed numbers:
2 11/84
3 73/84
2+3=5 11/84+73/84= 84/84 =1
5+1=6
To compare the two classes, the Coefficient of Variation (COV) can be used.
The formula for COV is this:
C = s / x
where s is the standard deviation and x is the mean
For the first class:
C1 = 10.2 / 75.5
C1 = 0.1351 (13.51%)
For the second class:
C2 = 22.5 / 75.5
C2 = 0.2980 (29.80%)
The COV is a test of homogeneity. Looking at the values, the first class has more students having a grade closer to the average than the second class.
(2x^2 + 4x + 6) - (-3x - 5x^2 + 4)
The negative sign separating the expressions is just multiplying the rightmost expression by -1.
(2x^2 + 4x + 6) + (3x + 5x^2 - 4)
Now, let's add together terms that share the same variable.
2x^2 + 5x^2 = 7x^2
4x + 3x = 7x
6 + (-4) = 2
Let's combine each of these terms into one expression.
7x^2 + 7x + 2 is the final answer.
