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4 years ago

Help on complex numbers

1 answer:

4 0

1) 1/6i=-6i
2) - (-4+5i)=4-5i
3) 1/(2+i)=(2-i)/(4+1) = (2-i)/5
4)1/(-3+5i)=(-3-5i)/(9+25)
5) square root of ( 5*5 + 12*12) = 13

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Please help with this<br>

tankabanditka [31]

Answer:

x=3

Step-by-step explanation:

y= -2

4x-3y=18

4x-3(-2)=18

4x-(-6)=18

4x+6=18

4x+6-6=18-6

4x=12

$\frac{4x}{4} = \frac{12}{4}$

x=3

If its helpful ❤❤❤

THANK YOU

6 0

3 years ago

Which of this fraction are greater then1/2 but less then 3/4 .7/8 .2/5 .1/3 .5/8 .3/6

avanturin [10]

Answer: 7/8

Step-by-step explanation:

think of each faction as a pie or pizza.

each one will have the number of slices as the bottom number of the fraction.

now shade in the top numbers and see if it more than your 1/2

you will see 7/8 is the answer since it will be one piece left from being complete or "gone"

hope this helped angel!!

4 0

3 years ago

Addition Property of

Mandarinka [93]

1.) x=4
2.)? 20=32-50
3.)x= 16 divided by 4,3+1, etc.

8 0

3 years ago

Read 2 more answers

Sophia pays £222 for a plane ticket.

Maurinko [17]

9514 1404 393

Answer:

24.6%

Step-by-step explanation:

The cost of the ticket in euros is ...

£222 × €1.38/(£1) = €306.36

Then the ratio of the tax to the to the total cost is ...

€100/(€306.36 +100) = 100/406.36 ≈ 24.6%

6 0

3 years ago

2u^2 + v when u=3 and v=7

Mariana [72]

Answer: 25

Step-by-step explanation:

There are two variables which is u and v and is given that u is 3 and v is 7 so input that into the expression and solve.

2(3)^2 + 7 Solve the exponent first

2(9) + 7 Now multiply then add

18 + 7 = 25

5 0

3 years ago