Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.
A. 
B. 
C. 
D. 
Answer: D
You might also like to view...
Multiply.(2x - 9y)2
A. 4x2 + 81y2 B. 4x2 - 36xy + 81y2 C. 2x2 - 36xy + 81y2 D. 2x2 + 81y2
Solve the problem.Mrs. Hernandez prepared her grocery list at home. Her list contained the following items with their sale prices: cheese - 
soda - 
; hamburger - 
; and gum - 
. She bought all of the items at the store except the crackers. How
much money did she spend? A. $23.86 B. $22.86 C. $21.89 D. $22.89
Find a rectangular equation for the curve with the given parametric equations.x = 4 sin t, y = 4 cos t; for t in [0, 2?]
A. x2 + y2 = 16
B. y = 
= 16
C. y = x2 - 9
D. y2 - x2 = 16
Solve the problem.The weekly sales in thousands of items of a product has a seasonal sales record approximated by 
(t is time in weeks with 
referring to the first week in the year). During which week(s) will the sales equal 93,720 items?
A. week 4, week 20, and week 52 B. week 4 and week 47 C. week 21 and week 30 D. week 30 and week 47