Answer:
What statements? Just a sentence from this?
Step-by-step explanation:
Answer:
Area: x^2+x-6
Perimeter: 4x+2
Step-by-step explanation:
Area: multiply x+3 and x-2 and combine the like terms
Perimeter: multiply the length and width by two, then combine the like terms.
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.
Answer:
48 cats
Step-by-step explanation:
Am interesting factoid about ratios:
The ratio 
can be separated into fractional parts of 
and 
. We need to know the cat part. 
, so that is the fraction part. Then, we multiply this fraction by 168 to get the total number of cats. This number is 48.
Maggie would be 6
6•3=18
18-4=14
14+6=20
