add the real parts together and then the imaginary parts together
7 + -8 = -1
3 + 9 = 12
-1 + 12 i
Answer:
The answer is in the solution. Please read to solution because I doubt you know anything about the topic. Read the solution so you can do it yourself next time.
Step-by-step explanation:
For this problem you just have to plug the x and y points into the equation.
Let's try out the easy ones first. If you plug 1 (our x value) into the equation you get y = 3(1) + 2
This then becomes y=5 and the y value that correlates to the x value 1 does NOT equal 5. So we can cross out the third option.
Now let's go to the fourth option (once again I'm just doing the easy ones).
y = -3x + 2
Plug in 1 (the first x value given) and you get y = -3 (1) +2
This then becomes y = -3 + 2.
Solve it and it is -1.
WE ARE NOT DONE THOUGH! Whenever you get a problem like this, plug in all the values.
Let's plug in 2 and -4 now.
y = -3x + 2
y = -3 (2) +2
y = -6 + 2
y = -4
So far so good!
Let's just plug in the other two ordered pairs.
y = -3 (3) + 2
y = -9 + 2
y = -7
Let's just plug in the last ordered pair to make sure.
y = -3x + 2
y = -3 (4) + 2
y = -12 + 2
y = -10
WE ARE DONE!
Answer:
for 3c it's After Edgar's 9th quiz he would have a grade of 89%
Step-by-step explanation:
It is going up by 4 everytime so...
57,61,65,69,73,77,81,85,89
1. 2. 3. 4. 5. 6. 7. 8. 9.
(Sorry but it's hard to read)
Answer:
Area = 24.75 sqr units
Step-by-step explanation:
You will need these formulas:
Midpoint =
Area = b x h
Let us treat CD as the base. Find the length of the base with the distance formula. Use the coordinates for points C & D.
The base is .
The height is the distance between point E and the midpoint of line CD.
Midpoint of CD = = (, )
Use the distance formula to find the height.
Find the area with the two distances that were found.
Area =
Area =
Area = 24.75 sqr units
1 cup = 8 ounces
3/4 cup = 8*(3/4)
3/4 cup = 6 ounces
She will add 6 ounces of water as it is equivlent to a 3/4 cup