Answer:
4. 3. 10
5. 1102.31
6. 17.37
Step-by-step explanation:
-
Given the 2 by 2 matrix
The determinant = ad - bc
For the given matrix
a = , b = , c = , d = , thus
ad - bc = × - ( × ) = - = -
sd
1. x<4
2.x<-15
3.a<6
4.x<32
5.r<66
6.m≤-3
400 million
Sorry for no steps