Plz help. ,,, ,,,,,,,,,,,,,,........
il63 [147K]
6. 3x - 3
7. -2b + 12
8. 2y-12
Answer:
The answer is B
Step-by-step explanation:
Answer:
final answer: 58xy
Step-by-step explanation:
24xy + 4xy - 2y + 42xy - 12xy + 2y
(24xy + 4xy + 42xy - 2xy) + ( - 2y + 2y)
(24 + 4 + 42 - 12)x xy + ( - 2 + 2)xy
58xy + ( - 2 + 2)xy
58xy + 0y
58xy
Answer:
The 2003 scores have a higher coefficient of variation, so they are more dispersed
Step-by-step explanation:
We have to find the coefficient of variation(CV) for both these tests.

In which
is the mean and
is the standard deviation.
Whoever has the higher CV has the higher variation, that is, is more dispersed.
2003


2004


The 2003 scores have a higher coefficient of variation, so they are more dispersed.
14 sec because
In 2sec=600
In4 sec=1200
In6 sec =1800
In 8sec =2400
In10 sec=3000
In12sec=3600
In 14sec=4000
In 14seconds it covers 4000