Answer:
C. 1, -9
Step-by-step explanation:
I just put it on desmos
Answer:

Step-by-step explanation:
Distribute the 5 into the parentheses (multiply them both by 5)

Subtract the 6.5 from -25.

Divide -31.5 by 15.5.

3*60 = 180 minutes
80/180 = 0.44
1-0.44 = 0.56
it was a 56% decrease in commute time
The app will only let me give one photo at a time, so here's part 1.
Answer:

Step-by-step explanation:
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
The population proportion have the following distribution
And we can solve the problem using the z score on this case given by:

We are interested on this probability:

And we can use the z score formula, and we got this:


And we can find this probability like this:
