Answer:
Real:
- 23
- 1/3
- cube root of -27
- sq root of 8
- cube root of 64
- 5.6
- 80%
- -3/7
- 0
Imaginary:
Complex:
- -5.7 - 4i
- 2/5 - 5/8i
- 2 + 3i
- -1.5 + 17i
Step-by-step explanation:
A real number is a number that exists in real life.
An imaginary number is a number that doesn't exist, hence it has the letter i in it.
A complex number consists of a real number and an imaginary number.
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Answer:(-10,-23)
Step-by-step explanation:
Okay....the easiest way to answer this would be either elimination or graphing. However, you could also use substitution.
Right now, I'll show how to use it by elimination.
First this is to convert both equations to standard form (x+y=__)
What we'll do for the first one is add 3x to each side. We end up with this:
-3x+y=7
Then subtract 2x from the other one. Ending up with:
-2x+y=-3
Now, we eliminate the y by subtracting.
-3x+y=7
(-) -2x+y=-3
___________
-x =10
x = -10
Now, plug in the x to one of the equations.
y=2(-10)-3
y=-20-3
y=-23
Make sure to check your answer by plugging both into the equations.
X=-10
Y=-23
Answer:
x=3
Step-by-step explanation:
you add 4 every time to solve for x
Answer:
V = 105/8
Step-by-step explanation:
Volume of a box is length time width times height
V = l*w*h
= 7/2 * 5/2 * 3/2
= 105/8
