## anonymous one year ago Can anyone help me with the matrix ? I will become a fan and i will give you a medal *questions are below *

1. anonymous

2. anonymous

|dw:1433186322955:dw|

3. anonymous

&& i don't need help with #5 , i just want to know if it's right ... even tho im 75%sure it is right lol

4. misty1212

which one?

5. anonymous

first one

6. misty1212

it is going to be very hard for me to write, but it is easy to do first multiply each entry in A by $$-3$$

7. misty1212

it is going to be very hard for me to write, but it is easy to do first multiply each entry in A by $$-3$$

8. misty1212

then multiply each entry in B by $$6$$

9. misty1212

10. anonymous

to make it easier .. is there like a formula to this ?

11. misty1212

at the risk of sounding silly, you are given the formula multiply by -3, multiply by 6 and add

12. anonymous

oh , & that's all i have to do ?

13. misty1212

$-3\begin{bmatrix} -3& 5& -6\\ 9 & -5 & 3 \end{bmatrix}$ $=\begin{bmatrix} 9& -15& 18\\ -27 & 15 & -9 \end{bmatrix}$

14. misty1212

yeah then do the same to the next one then add entry by entry that is all

15. anonymous

oh I see , Thank you for your help

16. misty1212

$\color\magenta\heartsuit$

17. anonymous

my answer : -3 21 60 -15 9 -45