9514 1404 393
Answer:
10 +8i
Step-by-step explanation:
You add these the same way you would if they were considered to be polynomials.
(7 +2i) +(3 +6i) = (7 +3) +(2 +6)i = 10 +8i
Answer:
The system that models the situation is:

The solution is:
(9, 6)
Step-by-step explanation:
We must write the equations as indicated in the problem.
The sum of twice a number and another number is 24
<em>a number:</em> x
<em>other number:</em> y
Then

The difference of twice the first number and the other number is 12
<em>first number: </em> x
<em>other number:</em> y
Then:

The system that models the situation is:

To solve the system we add both equations to find the value of x

---------------------


The solution is:
(9, 6)
Answer:
120
Step-by-step explanation:
Answer:
280-17=273
Step-by-step explanation:
because 80-17 equals 73 sooooooo add 200
Answer:
Discount=20%
Profit=14.20%
Step-by-step explanation: