Answer:
a=4 and b=-1
Step-by-step explanation:
2(4)+3(-1)= 5
For this case what we should do is take into account the following vectors:

We must find the following subtraction of vectors:

Subtracting component to component we have:

By writing we have:

Then the module of the resulting vector is given by:

Rewriting we have:

Answer:
The module of the resulting vector is given by:

option B
5x +12 = 6x - 10
Move the 5x over to the right by subtraction
12 = x - 10
Then move the 10 to the left by addition
22 = x
145-132= 13
13/145 = 0.089655 rounded to 9
9%
Question 10: P=28cm
if l=8 and w=6
Then (8+6)=14
2(14) so 14x2 = 28
So therefore P=28cm