Glenn has a total of $11,600 invested in three accounts: a savings account paying 6% interest, a stock playing 8%, and a mutual fund paying 10%. The annual interest from the stock and mutual...
Glenn has a total of $11,600 invested in three accounts: a savings account paying 6% interest, a stock playing 8%, and a mutual fund paying 10%. The annual interest from the stock and mutual...
Suppose that a 4x4 matrix A with rows, v1, v2, v3 and v4 has determinant determinant A=4. Find the following determinants determinant v1 v2 v3 v4+7v...
Consider the following two systems -6x-y=2 2x-9y=3 -6x-y=3 2x-9y=2 Find the inverse of the (common) coefficient matrix of the two systems. A-1=...
Solve the system x1+x2-4x3=3 3x1+4x2+3x3=-8 x1=? x2=? x3=?
An outdoor amphitheater has 25,000 seats. Ticket prices are $15, $17, and $25 and the number of tickets priced at $17 must equal two times the number priced at $25 How many tickets of each type should...
The perimeter of a triangle is 19cm. If the length of the longest side is twice that of the shortest side and 3cm less than the sum of the lengths of the other two sides, find the lengths of the three...
A-1 = 3 4 -5 1 and B-1=-3 5 4 -1 (AB)-1 =?
A theater has tickets at $6 for adults, $3.50 for students and $2.50 for children under 12 years old. A total of 278 tickets were sold for one showing with a total revenue of $1300. If the number...
enter a 3 times 3 skew-symmetric matrix A that has entries a21=0, a13=1, a32=2.
Find the inverse of AB if A-1 = 3 4 -5 1 B-1 = -3 5 4 -1 (AB)-1=...
Solve the system using a MATRIX x1+2x2-2x3-2x5+4x6=-4 -x4-3x5+2x6=9 x1+2x2+6x5+6x6=0 x1=? x2=? x3=? x4=? x5=? x6=?
8x+3y-5z=16 x= y= z=
We are learning about Matrices and it's still a little confusing for me.
4x1+x2=-3 8x1+2x2=-6 x1= x2=
Matrix A Matrix B Matrix C 5 -2 -9 2 -7 -2 -4 3 X + -5 -5 = ...
reduce the following matrix 1 1 -4 3 3 4 3 -8
Solve the system x1+2x2-2x3-2x5+4x6=-4 -x4-3x5+2x6=9 x1+2x2+6x5+6x6=0 x1=? x2=? x3=? x4=? x5=? x6=?
Solve the system x1+x2-4x3=3 3x1+4x2+3x3=-8 x1= x2= x3=
x1+x2=-4 x2+x3=-4 x3+x4=4 x1+x4=4 x1= x2= x3= x4=
4 1 -3 8 2 -6 x1= x2=