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3 years ago

Complex numbers are often used when dealing with alternating current (AC) circuits. In the equation V = IZ, V is voltage, I is c

urrent, and Z is a value known as impedance. If V = 1+i and Z=2-i, find I. Please do this quickly!!

Mathematics

1 answer:

gizmo_the_mogwai [7]3 years ago

4 0

$V=IZ\\\\1+i=I\cdot(2-i)\quad|:(2-i)\\\\\\I=\dfrac{1+i}{2-i}=\dfrac{(1+i)(2+i)}{(2-i)(2+i)}=\dfrac{2+i+2i+i^2}{2^2-i^2}=\dfrac{2+3i-1}{4-(-1)}=\dfrac{1+3i}{5}\\\\\\\\\boxed{I=\frac{1+3i}{5}=\frac{1}{5}+\frac{3}{5}i}$

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Help me please thanks

Nadusha1986 [10]

The answer would be 100

90+90+130+130=440.

540 - 440 = 100.

6 0

3 years ago

The length of PQ is<br> The midpoint of PQ is m(_,_)

nordsb [41]

What first of all this is a test second how are we supposed to do that where can we find M

7 0

3 years ago

30 tens times 5 hundreds= 50 tens and 3 hundreds true or false?

Pavlova-9 [17]

Answer:

true

Step-by-step explanation:

Somebody once told me the world is gonna roll me

I ain't the sharpest tool in the shed

She was looking kind of dum with her finger and her thumb

In the shape of an "L" on her forehead

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Didn't make sense not to live for fun

Your brain gets smart but your head gets dum

So much to do, so much to see

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You'll never know if you don't go

You'll never shine if you don't glow

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You're bundled up now, wait 'til you get older

But the meteor men beg to differ

Judging by the hole in the satellite picture

The ice we skate is getting pretty thin

The water's getting warm so you might as well swim

My world's on fire, how about yours?

That's the way I like it and I'll never get bored

Hey now, you're an all-star, get your game on, go play

Hey now, you're a rock star, get the show on, get paid

All that glitters is gold

Only shooting stars break the mold

Hey now, you're an all-star, get your game on, go play

Hey now, you're a rock star, get the show, on get paid

And all that glitters is gold

Only shooting stars

Somebody once asked could I spare some change for gas?

I need to get myself away from this place

I said, "Yup" what a concept

I could use a little fuel myself

And we could all use a little change

Well, the years start coming and they don't stop coming

Fed to the rules and I hit the ground running

Didn't make sense not to live for fun

Your brain gets smart but your head gets dum

So much to do, so much to see

So what's wrong with taking the back streets?

You'll never know if you don't go (go!)

You'll never shine if you don't glow

Hey now, you're an all-star, get your game on, go play

Hey now, you're a rock star, get the show on, get paid

And all that glitters is gold

Only shooting stars break the mold

And all that glitters is gold

Only shooting stars break the mold

6 0

3 years ago

Read 2 more answers

Benito wrote the equations shown about the figure. Explain Benito’s errors.

Whitepunk [10]

Answer:

Benito's error was stating that the correspongind sides and angles are equal (=) instead of stating that they are congurent (≅).

Explanation:

In geometry two different figures (segments, angles, polygons ,...) are not said to be equal but congruent.

Congruent means that they have the same measure but not that they are equal in other senses.

The use of equal is applied to numbers or variables),so you can tell x = 2, 3 = 3, A = πr², but you should not say segment AB is equal to segment BC. Instead you say segment AB ≅ segment BC, which is segment AB is congruent to segment BC.

Of course, you still can use the word equal (symbol =) if you state that you are talking about measures.

This also can help you

Correct: segment AB ≅ segment BC

Correct: legth of segment AB = length of segment BC

Incorrect: segment AB = segment BC

Segment AB and segment BC are not equal because they are two different segments. They are congruent because they have the same length.

Note: the bars shown over the letters AB, BC, AD, DC, mean segment.

6 0

4 years ago

What is the function for the arithmetic sequence 7,9,11,13,15,17

xeze [42]

Answer:

Step-by-step explanation: I would say y=x+2 or 2 because every number that you add 2 to, it gives you the solution which is the second number

Hope this helps!!!!

Please mark Brainliest!!!!!☺

5 0

3 years ago