Answer:
A
Step-by-step explanation:
First, find Neeta's total height in inches:
4 feet in inches is 4*12, which equals 48
Add the other 7 inches of her height to get 55 inches.
Then, subtract her initial height from her current height.
55 - 17 = 38. That is how many inches she has grown. Convert that to feet by dividing 38 by 12.
You get about 3.16, which is over 3 feet. So A is the correct answer.
Step-by-step explanation:
Arrow JK=360-54-130-110=66
arrow MK=66+54=120
Angle L=120/2=60
3a=60
a=30
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.
9+(<span>6•16)10-22
9+(96)10-22
9+960-22
969-22
947
</span>
Fourths, then b. Sorry if late.
