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DochEvi [55]
3 years ago
13

What is the difference of the complex numbers below? (3+9i)-(7-5i)

Mathematics
1 answer:
vodka [1.7K]3 years ago
5 0

Answer:

-4+14i

Step-by-step explanation:

(3+9i)-(7-5i)

(3+9i)+(-7+5i)

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What is happening at this step in the equation solving process for 3x+7=5x <br> 7=2x
Leya [2.2K]
Your subtracting 3x from 5x: 5x-3x
This is so you only have a variable on one side
3 0
3 years ago
Read 2 more answers
Let a = x2 + 4Rewrite the following equation in terms of a and set it equal to zero (x2+4)2+32=12x2+48
tester [92]

Answer:

x^4 - 4x^2 = 0

^.^

- Amanda

4 0
4 years ago
Adam would use the following steps to round 11.3524 to the nearest tenth 11.3524-11.352-11.35-11.4 is adam's method a valid way
noname [10]

Answer:

Adam's way is correct

Step-by-step explanation:

11.3524 can easily be rounded to the nearest tenth because the number 4 cannot be rounded up. Any number below 4 cannot be rounded up and anything above five can be rounded up and that us why 5 rounded up transforms the 3 to a 4.

Hope this helped.

6 0
3 years ago
Factorise fully -x - 8
natta225 [31]

Answer:

x = -8 please mark brainliest

Step-by-step explanation:

Pull out like factors :

  -x - 8  =   -1 • (x + 8)

Equation at the end of step  1  :

Step  2  :

Solving a Single Variable Equation :

2.1      Solve  :    -x-8 = 0

Add  8  to both sides of the equation :

                     -x = 8

Multiply both sides of the equation by (-1) :  x = -8

3 0
3 years ago
In a given amount of time , Nijah drove twice as far as Jared. Altogether they drove 135 miles. Find the number of miles driven
Alexandra [31]
2x + x = 135
3x = 135
x = 135 /3
x = 45

Nijah = 2*45 = 90 miles
8 0
3 years ago
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