Answer:
Option B is correct
Step-by-step explanation:
The multiply of matrix A by matrix B that is inverse of A, must result in an identity matrix that has form shown in option B
Hope this helps!
When an equation is in standard form, x isn't negative so she should divide everything by a negative 1 to change it into a positive equation.
Answer:
14
Step-by-step explanation:
hi! so the question is asking what h is when you input -18 for x, right?
inputing in this question means to substitute, meaning that in this equation, -18 will take the place of x!
- let's see what the equation looks like now

- easy as that!
now let's do the math :)
- because of PEMDAS, remember to do the fraction (dividing) first!

we can change that to --> h = 17 - 3
h = 14
let me know if you're still confused!
Step-by-step explanation:
6a.


6b.



2+2=4 x 20=80 I hope this is what you were looking for