Find the determinant of the matrix and determine if the matrix is invertible
?1, not invertible
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At what points is the given function continuous?f(x, y) = 
A. All (x, y) such that 6x + 6y ? 0 B. All (x, y) such that 6x + 6y ? 0 C. All (x, y) such that x + y ? 0 D. All (x, y)
Prove the limit statement
= 
What will be an ideal response?
Solve the problem.Matt bought 3 pounds of oranges and 2 pounds of apples and paid src="https://sciemce.com/media/4/ppg__fdgfd0509192127__f1q71g4.jpg" alt="" style="vertical-align: -15.0px;" />
A. $0.85 per pound
B. $0.81 per pound
C. $0.78 per pound
D. $0.72 per pound
before tax. Andy bought 4 pounds of oranges and 3 pounds of apples and paid 
before tax. Use this information to set up a matrix equation of the form AX = B , which can be solved to determine the price per pound for oranges and apples. Solve this matrix equation to find the price per pound of apples.Use the fact that for 
Solve the application problem.The product of two positive consecutive integers is 19 more than their sum. Find the integers.
A. 5, 6 B. 4, 5 C. -4, -3 D. -6, -5