Why cant you take the inverse of a matrix with det = 0?

If a kitten eats 1/4 cup of food and it's mom eats 6 times as much food as the kitten how much food did the mom eat?

Y = - 3x - 4 y = 3x + 4

Three groups of schoolchildren receive three different types of reading instruction for a school year. At the end of the year, students reading performance is measured. Identify the independent variable and dependent variable in the study.

Identify the expression as a numerical expression or variable expression. for a variable expression, name the variable. 1 x 12

Which of these is an example of a recurring-payment variable annuity

The probability that an adult possesses a credit card is 0.74. a researcher selected four adults at random. the probability (rounded to three decimal places) that three of the four adults possess a credit card is:

you and four friends go to johnny rockets. you all split the bill equally. each person share was $6.50. how much was the original bill?

One root of the equation x2+6x+q=0 is twice the other root. find q and the roots.

What is the solution of y=2x+1 and 3y=4x+7

What is 55+50. what will be the answer