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2 years ago

Find the value of x and y if: (x-yi)+ 7-2i =9-i

Mathematics

1 answer:

Kruka [31]2 years ago

7 0

Answer:

x=2, y=-1

Step-by-step explanation:

$(x+7)+(-y-2)i=9-i$

the (x+7) part corresponds to the 9 and the (-y-2) corresponds to the coefficien of i.

$x+7=9$

$x=2$

$-y-2=-1$

$y=-1$

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What is 7=5x+8 in y=me+b form

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3 years ago

If there are a total of 25 questions, and I scored 56% on my test, how many answers did I get right, and how many answers did I

Ipatiy [6.2K]

Answer:

14 correct and 11 wrong

Step-by-step explanation:

If you got a 56% , we need to change this to decimal form 56% = .56

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3 years ago

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alina1380 [7]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

HELP ME PLEASE I NEED HELP

Olin [163]

Step-by-step explanation:

You should prolly subtract 2 from both sides first.

So you get, -|2/5x + 3| > -1 2/5

Add three to both sides
-|2/5x| = -1 2/5
Do -1 and 2/5 divided by 2/5 to get -3.5, x > -3.5

One of the answers is x > -3.5 but you need to switch the sign to less than and make the other side the opposite.

$-( \frac{2}{5}x + 3 ) < 1 \frac{2}{5}$

You see that, switched the sign and made whats on the right side opposite. So now solve for x again but with this new equation. Also, the parentheses are absolute value signs

Subtract 3 from both sides

-|2/5x| < -1 and 3/5

Divide 2/5 from each side to get x < -4

I hope I'm correct, my bad if I'm wrong

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3 years ago

Read 2 more answers

3 times x squared minus 4 times x

user100 [1]

3x^2 - 4x

Im not quite sure what your asking, so I hope this helps!

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3 years ago

Find the value of x and y if: (x-yi)+ 7-2i =9-i​

Find the value of x and y if: (x-yi)+ 7-2i =9-i