Answer:
is the answer
Step-by-step explanation:
just add the 3 and -5 and u get -2
if the main number is the same keep it
ik this doesnt make any sense but hope this helps....
Answer:
1) See figure attached
2)
a) 
And if we replace we got:

b) 
And if we replace we got:

Step-by-step explanation:
Part 1
We can see the plot in the figure attached.
Part 2
a)
For this case we have two points 
And we want to find the distance travelled between these two points and we can use the following formula from the euclidian distance between two points:

And if we replace we got:

b)
Since it takes two seconds in order to go from (6.9) to (10,15) we can use the definition of velocity:

And if we replace we got:

Answer:
56.8
Step-by-step explanation:
Ratios.
42------60
1----------1.42
40-------56.8
First, divide 42 by 42 which is one. Then, divide 60 by 42, which is 1.42.
Next, multiply 1 by 40. Finally multiply 1.42 by 40 which is 56.8. Hope this helps
-2-5i is the correct answer
Decimal fractions don't exist. Do you mean convert to a decimal and a fraction?