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brilliants [131]
3 years ago
12

Uestion Hel

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
6 0

40ft hope this hellped ask again

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Simplify  <br> (−3 + i) / (7+i)
Kitty [74]

<u><em>Answer: -2/5+1/5i</em></u>

Explanation:

complex rule.

(-3*7+1*1)+(1*7-(-3)*1)i/7²+1² ← as the fractions

then refine and rewrite the problem down.

-20+10i/50 ← as the fractions shown.

-20+10i/50=-2+i/5

you can also rewrite the problem down in standard complex form.

-2+i/5=-2/5+1/5i

<u><em>=-2/5+1/5i</em></u>

Hope this helps!

Thanks!

Have a great day!

8 0
3 years ago
Read 2 more answers
Please help and explain how you got the answer
nordsb [41]
I say 8 because i guessed and im a really good guesser

7 0
3 years ago
Christina says that if she multiplies 23×25, her product will automatically be less than 23 because 25 is less than 1, meaning t
stellarik [79]

Answer:

Christina is incorrect.

Step-by-step explanation:

Since we are multiplying and our numbers are larger than 1, we know our product will be large. Your answer will be 575 :)

I hope this helps! :3

7 0
3 years ago
How can I determine the value of x that will make the expression a real <br> √x-1
Sholpan [36]
The content of the square root must be greater than or equal to zero. Determine the conditions on x that make this true.

As written, you require
.. x ≥ 0

If you intend
.. √(x -1) ∈ ℝ
Then
.. x -1 ≥ 0
Solve this inequality by adding 1.
.. x ≥ 1
6 0
3 years ago
Find y-intercept for 9x-5y=0.
LUCKY_DIMON [66]

Answer:

y=-9/5x+0  the y intercept would simply be 0

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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