Answer:
y decreases by 4 as x increases by 2
or
there is a -2 change between the relationship of x and y
I hope I understood the question correctly
Answer:
45 apps
Step-by-step explanation:
1 minute has 60 seconds
If 12 seconds equals to 9 apps
60 seconds equals to x apps
Cross multiplying
![x=\frac {60\times 9}{12}=45 apps](https://tex.z-dn.net/?f=x%3D%5Cfrac%20%7B60%5Ctimes%209%7D%7B12%7D%3D45%20apps)
Therefore, Dean downloads 45 apps in 1 minute
Answer:
2
Step-by-step explanation:
The z-score is the number of standard deviations the value is above the mean. If that number is 2, then Z=2. If that number is -2, then Z=-2.
___
Both Z=2 and Z=-2 are values that are two standard deviations from the mean.
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