If a matrix does NOT have an inverse, what do know about the determinant?

A) The determinant does not exist.

B) The determinant is O.

C) The determinant is 1.

D) The determinant is - 1.

4. A scuba diver was at a depth of - 80 1/2 How many feet did the scuba diver travel if the diver traveled to the surface of the ocean?

You are writing up plans for building a table from a 4-foot-by-8-foot rectangular sheet of plywood. The table top will be a square, and the top face must be sanded.

What is the eqivalent expression for 3p+12m+8

Simpify the expression 7y+3x+3-2y+6 What is the coefficient of y? What is the constant?

Which expressions represent rational numbers? Check all that apply. StartRoot 6 EndRoot + StartRoot 9 EndRoot StartRoot 64 EndRoot + StartFraction 6 Over 11 EndFraction StartRoot 36 EndRoot + StartRoot 21 EndRoot StartRoot 16 EndRoot + StartRoot 169

Gregorio took two tests. Find his z-score for each test. (Remember: The number of standard deviations between a score and the mean score is indicated by a z-score.

The variablesx and y are directly proportional, and y=2 when x=3. What is the value of y when x=9?

Barry got a samll sandwich for lunch and ate 1/2 of his sandwich. Jonah got a large sandwich and ate 1/2 of his sandwich. Did Jonah and Barry eat the same amount for lunch? Explain how you know.

Solve. s - 6 < 24 s < 6 s < 10 s s < 90

How many solutions are there for a+b+ab=50. Show your work