Answer:
ty you 2
Step-by-step explanation:
Assuming the cost of a bag of popcorn is p and that of candy bars is b, then;
Troy ; 28p +40b = 282
Jake; 17b + 20b = 160.50
Solving the two equations simultaneously,
20(28p +40b =282)
40(17p + 20b =160.5)
we get;
560p +800b = 5640
680p + 800b = 6420 subtracting to eliminate b;
-120p= -780
p = 6.50
Replacing the value of p in either equation to get b;
17 (6.5) +20b =160.5
20b = 50
b = 2.50
Therefore the cost of a bag of popcorn is 6.50
Hello, let's note A the matrix, we need to find such that A= I, where I is the identity matrix, so the determinant is 0, giving us the characteristic equation as
We just need to solve this equation using the discriminant.
And then the eigenvalues are.
To find the basis, we have to solve the system of equations.
Thank you
Work shown above! Answer would be D. hope this helps c: