Step-by-step explanation:
A matrix of order 3×1 means it has 3 rows and one column.

It's 53. You have to put the numbers in order, then tick off a number from each end until you get to the middle. That is your number.
To answer this question first you have to count the difference between the highest number with the lowest number.
In this case, the difference is: 40-12=28
After that, you need to determine the leaps in the sequence. In this case, there are 4 leaps.
After that divide the difference with the leaps : 28:4=7
Therefore the sequence will be 12 , 19, 26, 33, 40
The equation 3x+1/2=4
meaning x would equal 7/6
Answer:
The area under the function
.
Step-by-step explanation:
We want to find the Riemann Sum for
with 4 sub-intervals, using right endpoints.
A Riemann Sum is a method for approximating the total area underneath a curve on a graph, otherwise known as an integral.
The Right Riemann Sum is given by:

where 
From the information given we know that a = 1, b = 3, n = 4.
Therefore, 
We need to divide the interval [1, 3] into 4 sub-intervals of length
:
![\left[1, \frac{3}{2}\right], \left[\frac{3}{2}, 2\right], \left[2, \frac{5}{2}\right], \left[\frac{5}{2}, 3\right]](https://tex.z-dn.net/?f=%5Cleft%5B1%2C%20%5Cfrac%7B3%7D%7B2%7D%5Cright%5D%2C%20%5Cleft%5B%5Cfrac%7B3%7D%7B2%7D%2C%202%5Cright%5D%2C%20%5Cleft%5B2%2C%20%5Cfrac%7B5%7D%7B2%7D%5Cright%5D%2C%20%5Cleft%5B%5Cfrac%7B5%7D%7B2%7D%2C%203%5Cright%5D)
Now, we just evaluate the function at the right endpoints:




Next, we use the Right Riemann Sum formula
