Answer:

Step-by-step explanation:
From the question we are told that
Matrix is given as 
Generally let the change in matrix be given as X

Matlab output
![A=[2 -1 10;-3 8 4]\\a=(A(1,1)*-A(1,2))+A(1,2)\\b=(A(2,1)*-A(1,2))+A(2,2)\\X=[A(1,1) a A(1,3); A(2,1) b A(2,3)]\\](https://tex.z-dn.net/?f=A%3D%5B2%20-1%2010%3B-3%208%204%5D%5C%5Ca%3D%28A%281%2C1%29%2A-A%281%2C2%29%29%2BA%281%2C2%29%5C%5Cb%3D%28A%282%2C1%29%2A-A%281%2C2%29%29%2BA%282%2C2%29%5C%5CX%3D%5BA%281%2C1%29%20a%20A%281%2C3%29%3B%20A%282%2C1%29%20b%20A%282%2C3%29%5D%5C%5C)
Generally the matrix that makes row 2 of matrix A equal to first row of A multiplied by the negative of the first element of row 2 plus the original row is

we know that
<u>in the triangle PQR</u>
m∠PQR+m∠QPR+m∠QRP=180°------> the sum of the internal angles of a triangle is equal to 180 degrees
(m∠PQR+m∠QRP)+74°=180°-------> (m∠PQR+m∠QRP)=106°
we know that
If QS and SR are angle bisectors
then
<u>In the triangle QSR</u>
m∠SQR+m∠QSR+m∠QRS=180°-------> equation 1
and
(m∠SQR+m∠QRS)=106°/2--------> (m∠SQR+m∠QRS)=53°
substitute the value of (m∠SQR+m∠QRS)=53° in the equation 1
53°+m∠QSR=180°
m∠QSR=180°-53°-------->m∠QSR= 27°
therefore
<u>the answer is</u>
The measure of angle QSR is 27 degrees
Students = 380
Adults = 150
You can get this by using x = students and y = adults. Then set up a cost equation of:
3x + 4y = 1740
and a total tickets equation of
x + y = 530
Solve using any method.
Answer:
Step-by-step explanation:
b = 5655
r = 1.4% = 1.4/100 = 0.014
Therefore, the equation would be
y = 5655(1 + 0.014)^t
y = 5655(1.014)^t
b) in 2022, t = 2022 - 2010 = 12 years
y = 5655(1.014)^12
y = 6682
Answer:
$2.10
Step-by-step explanation:
To find the total cost, multiply.
12.25*1.20 = 14.7
Tommy and 6 of his friends means 7 people.
Cost per person will be:
14.7/7 = 2.1