Answer:
your answer is c hope this helps
Step-by-step explanation:
Answer:
f(g(x)) = 2x +(-5)
Step-by-step explanation:
Put the argument value into the function and simplify the result.
f(g(x)) = f(x -3) = 2(x- 3) +1 = 2x -6 +1
f(g(x)) = 2x +(-5)
The final answer will be a 3x3 matrix. So you'll have 3 rows and 3 columns.
Along row one, the values are: 10, 15, 20
Along row two, the values are: 45, -5, -35
Along row three, the values are: 55, 25, -15
all of which make up the final answer. Each value in bold is the result of multiplying the outer 5 by each value inside the original matrix given. In a sense, it's like using the distributive property, though we wont be adding any of the values (everything stays separated).
The mean is equal for Group A and Group B.
<h2>Given </h2>
Two groups of students were asked how far they lived from their school.
The table shows the distances in miles:
Group A (distance in miles) 1 1.5 3.03 3.2 2.8 1.5 1.8 2.5 2.2
Group B (distance in miles) 2 2.5 3.23 1.3 1.8 2.4 3 1.5 1.8
<h3>What is mean?</h3>
The mean of any data set or observation is equal to the sum of all the observations and divided by the number of observations.
The formula used to calculate the mean is;
![\rm Mean = \dfrac{Sum \ of \ all \ observation}{Number \ of \ obrservation}](https://tex.z-dn.net/?f=%5Crm%20Mean%20%20%3D%20%5Cdfrac%7BSum%20%5C%20of%20%5C%20all%20%5C%20observation%7D%7BNumber%20%5C%20of%20%5C%20obrservation%7D)
The mean of group A is;
![\rm Mean = \dfrac{Sum \ of \ all \ observation}{Number \ of \ obrservation}\\\\\rm GroupA \ mean = \dfrac{1 + 1.5 + 3.03 + 3.2 + 2.8 + 1.5 + 1.8 + 2.5 + 2.2}{9 }\\\\\rm Group A \ mean=\dfrac{ 19.53}{9}\\\\ Group A \ mean = 2.17](https://tex.z-dn.net/?f=%5Crm%20Mean%20%20%3D%20%5Cdfrac%7BSum%20%5C%20of%20%5C%20all%20%5C%20observation%7D%7BNumber%20%5C%20of%20%5C%20obrservation%7D%5C%5C%5C%5C%5Crm%20GroupA%20%5C%20mean%20%3D%20%5Cdfrac%7B1%20%2B%201.5%20%2B%203.03%20%2B%203.2%20%2B%202.8%20%2B%201.5%20%2B%201.8%20%2B%202.5%20%2B%202.2%7D%7B9%20%7D%5C%5C%5C%5C%5Crm%20Group%20A%20%5C%20mean%3D%5Cdfrac%7B%2019.53%7D%7B9%7D%5C%5C%5C%5C%20Group%20A%20%5C%20mean%20%3D%202.17)
The mean of group B is;
![\rm Mean = \dfrac{Sum \ of \ all \ observation}{Number \ of \ obrservation}\\\\\rm Group B \ mean = \dfrac{2 + 2.5 + 3.23 + 1.3 + 1.8 + 2.4 + 3 + 1.5 + 1.8}{9} \\\\Group B \ mean = \dfrac{19.53}{9}\\\\ Group B \ mean = 2.17](https://tex.z-dn.net/?f=%5Crm%20Mean%20%20%3D%20%5Cdfrac%7BSum%20%5C%20of%20%5C%20all%20%5C%20observation%7D%7BNumber%20%5C%20of%20%5C%20obrservation%7D%5C%5C%5C%5C%5Crm%20Group%20B%20%5C%20mean%20%3D%20%5Cdfrac%7B2%20%2B%202.5%20%2B%203.23%20%2B%201.3%20%2B%201.8%20%2B%202.4%20%2B%203%20%2B%201.5%20%2B%201.8%7D%7B9%7D%20%5C%5C%5C%5CGroup%20B%20%5C%20mean%20%3D%20%5Cdfrac%7B19.53%7D%7B9%7D%5C%5C%5C%5C%20Group%20B%20%5C%20mean%20%3D%202.17)
Hence, the mean is equal for Group A and Group B.
To know more about Mean click the link given below.
brainly.com/question/12513463
Answer:
i remember this question you have to divide and when i did that exact question my test i got it right!
Step-by-step explanation: