This is the graph of 1/x moved 4 units to the left
so its f(x) = 1 / (x + 4)
C
We have been given that the ages of students in a school are normally distributed with a mean of 15 years and a standard deviation of 2 years.
We are asked to find the percentage of students that are between 14 and 18 years old.
First of all, we will find z-score corresponding to 14 and 18 using z-score formula.
Similarly, we will find the z-score corresponding to 18.
Now we will find the probability of getting a z-score between 
and 
that is 
.
Using normal distribution table, we will get:
Let us convert 
into percentage.
Therefore, approximately 
of the students are between 14 and 18 years old.
Using it's concept, the relative frequency for people who can <u>only see the sunset</u> is: 12/38.
<h3>What is a relative frequency?</h3>
A relative frequency is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
From the two-way frequency table, we have that there are 38 people, out of which 12 can see the sunset but not the sunrise, hence the relative frequency for people who can <u>only see the sunset</u> is: 12/38.
More can be learned about relative frequencies at brainly.com/question/23359601
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Answer:
Length 3 cm.
Width 3 cm.
height 9. cm
Step-by-step explanation:
The volume is the length * width * height = LWH.
81 = 3* 3 * 9 so L could be 3, W could be 3 and H could b 9 cm.
Answer: 3
Step-by-step explanation:
