Cho 2 ma trận: 5 1 2
4 2 3
A
  −
=  
  ,
2 1 3
4 1 0
0 2 1
B
 
 
= −  
   
. Tính AB

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

Jose bought 20 shares of netflix at the close price of $117.98. in a few years, jose sells all of his shares at $128.34. how much money did jose make? a.) $192.50 b.) $207.20 c.) $212.50 d.) $224.60