3 years ago

I need help thanks hullo

Mathematics

2 answers:

babymother [125]3 years ago

8 0

The answer is b for your answer
But we can put it that way

Novay_Z [31]3 years ago

3 0

Answer:

the answer would be "A"

Step-by-step explanation:

hope this helpssss

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lianna [129]

Step-by-step explanation:

Let the complex numbers be $a+ib\textrm{ and }c+id$ .

Given, sum is $10i$ , difference is $-4$ and product is $-29$ .

$(a+c)+i(b+d)=10i$ ⇒ $a+c=0,b+d=10$

$(a-c)+i(b-d)=-4$ ⇒ $a-c=-4,b-d=0$

$a=-2,c=2,b=5,d=5$

$(a+ib)(c+id)=(-2+5i)(2+5i)=-4-25=-29$

Hence, all three equations are consistent yielding the complex numbers $-2+5i\textrm{ and }2+5i$ .

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3 years ago

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A 144-inch board is cut into two pieces. One piece is five times the length of the other. Find the length of the shorter piece.

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Step-by-step explanation:

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Step-by-step explanation:

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