Answer:
See below.
Step-by-step explanation:
Increase = 15 - 8 = 7 minutes.
Percent increase = 7/8 * 100.
In short, a horizontal translation, means f("x + some number"),
now, that number is 2, and is to the left, so that means f(x + 2)
There is no solution since the lines are parallel. (See attached graph)
<h2><u><em>
Hope this helps!</em></u></h2>
Use Brainly to find the right answer :) tha the what I do all the time
Answer:
19.74% of temperatures are between 12.9°C and 14.9°C
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:

What proportion of temperatures are between 12.9°C and 14.9°C?
This is the pvalue of Z when X = 14.9 subtracted by the pvalue of Z when X = 12.9.
X = 14.9



has a pvalue of 0.2420
X = 12.9



has a pvalue of 0.0446
0.2420 - 0.0446 = 0.1974
19.74% of temperatures are between 12.9°C and 14.9°C