important question of matrices and determinants

The U.S. imported 600 million tons of cotton in the year 2000 and the imports fell to 500 million tons in the year 2001. Find the percent of decrease in the imports of cotton. => 16 2 3 or 16 3 4 or 16 1 3 or None of the above..

Determine whether the relation is a function. => Yes or No..

Determine the value of the variable that best fill the blank. => 60 or 50 or 40 or 30..

Determine which pair of ratios forms a proportion. => 8 14 , 3 17 or 4 13 , 2 7 or 3 7 , 12 19 or 2.5 10 , 4 16..

Determine which two ratios form a proportion. => 45 8 , 22.5 4 or 2 3 , 7 9 or 5 7 , 35 21 or 2 5 , 200 340..

The U.S. imported oil at the rate of 6 million barrels per day in 1978. In 1990, the oil import rate rose up to 7 million barrels per day . Find the percent of increase in imports. => 16.6% or 17% or 16% or 17.6%..

Equality of Matrices, Addition of Matrices, Matrix Addition is commutative, Matrix addition is associative, Subtraction of Matrices, Multiplication of a matrix by a scalar, Multiplication of Matrices, Properties of Matrix Multiplication, Transpose of a ..

For two matrices A and B of the same order, we define A-B = A+(-B..

If two matrices have their corresponding elements equal, then they are called equal matrices. Two equal matrices are exactly the same. If the given matrix A is of the order m x n, then its transpose will be of the order n x ..

Equality of Matrices - Two matrices are said to be equal if they have the same order and their corresponding elements are equal. e.g., then a = 1, b = 2, c = 3, d = 4, e = 5 and f = ..