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

Three numbers between - 5 and 5

At the movie theatre, child admission is $5.20 and adult admission is $9.70. On Sunday three time as many adult tickets as child tickets were sold, for a total sales of $788.90. How many child tickets were sold that day?

In a batch of 440 water purifiers, 8 were found to be defective. What is the probability that a water purifier chosen at random will be defective? Write the probability as a percent. Round to the nearest tenth of a percent if necessary.

Solve using addition, subtraction, multiplication, or division 3m/2/3 = 7

You expect to receive $39,000 at graduation in two years. you plan on investing it at 10 percent until you have $174,000. how long will you wait from now?

What is x+2y=6 2x-4y=-12

Which operation (i. e. addition, subtraction, multication or division) is done first of the following problems. - 2:2+1

Kristin's three-year old sister is trying to arrange pink and red Starbursts in rows. She has 360 pink Starbursts and 150 red Starbursts.

Is 4/2 a whole number

For each of the transactions in items 1 through 5, indicate the effects on the accounting equation elements. The company purchases supplies on credit - The Asset account does the following A. Increase B. decrease C. No effect