Answer:
A
Step-by-step explanation:
<span>5x-3+2(x+4) solve for x
=</span><span>5x - 3 +2x + 8
</span><span>= 7x + 5
so 7x = -5
x = -5/7
</span>
This changes to 7/12 times 16/12
which simplifies to
112/144
which simplifies to
7/9
Hope this helps!
Answer:
2M will be:

Therefore, the 2nd option is true.
Step-by-step explanation:
Given the matrix

Multiplying by 2 will basically be a scalar multiplication.
Therefore, multiply each of the matrix elements by a scalar.



Hence, 2M will be:

Therefore, the 2nd option is true.