Answer:



Step-by-step explanation:
- The product of two matrices
and
equals a matrix
, where the first element of the subscript represents the amount of files of the matrix and the second element represents the amount of columns of the matrix. - Then, in this case
, therefore, its product will result a matrix
. - Because C matrix is going to have an only file and three columns, we now have to find the values of the elements in each column, based on the elements of A and B.
- Commonly, to obtain the values of the resulting matrix, we just have to multiply each file of the first matrix by each column of the second matrix and sum, as follows:



- Finally, C matrix is

Answer:
23.4
Step-by-step explanation:
23/5+99/5-5/5= 23.4
hope this helps....
Answer:
The 98% confidence interval would be given by (55.639;62.361)
Step-by-step explanation:
Information given
represent the sample mean
represent the sample deviation
represent the sample size
Solution to the problem
The confidence interval for the mean is given by the following formula:
(1)
The degrees of freedom are given by:
The Confidence is 0.98 or 98%, the significance would be
and
,and the critical value would be
And replacing we got:
The 98% confidence interval would be given by (55.639;62.361)
Answer:
Below in bold.
Step-by-step explanation:
The hexagon is made up of 6 equilateral triangles.
So the Base = 12 cm.
Height a = 12 cos 30 = 10.392 cm
So area of 1 triangle = 1/2 * 12 * 10.392 cm^2
- and total area = 6 * 1/2 * 12 * 10.392
= 36 * 10.392
= 374.11 cm^2 to the nearest hundredth.
Hi there
The formula of the future value of annuity due because you invest now means you invest at the beginning of each month
Fv=pmt [(1+r/k)^(kn)-1)÷(r/k)]×(1+r/k)
The first option you invest 100 at the beginning of each month for 30 years (60-30) therefore
Fv=100×((((1+0.1÷12)^(12×30)
−1)÷(0.1÷12))×(1+0.1÷12))
=227,932.53...is higher
The second option you invest 200 at the beginning of each month for 20 years (60-40) therefore
Fv=200×((((1+0.1÷12)^(12×20)
−1)÷(0.1÷12))×(1+0.1÷12))
=153,139.38...is lower
So I would choose the first option which is invest 100 due to higher amount
Hope it helps