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timurjin [86]
1 year ago
5

(-14+3i)-(14i) = ? Express your answer in the form (a + bi).

Mathematics
1 answer:
gayaneshka [121]1 year ago
6 0

Answer:

-14 - 11i

Step-by-step explanation:

You may be learning about the imaginary number, i. Even though i is actually the squareroot of -1, when you are doing algebra with it, it acts just like a variable does. The special thing to remember about i is that i^2 is -1. But we don't even need that right now for this problem.

(-14 + 3i) - (14i)

= -14 + 3i - 14i

Combine the i's

= -14 - 11i

That's it. The -14 is the a, and the -11 is the b in a+bi.

If necessary to fill in a computer answer that is already formatted with a plus, like:

_ + _i

then use -14 for a and -11 for b.

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Please explain this step by step and solve within 10-20 minutes please
DaniilM [7]

Answer:

y=\frac{306}{7} is the answer.

In decimal y = 43.71

Step-by-step explanation:

Given:

y varies directly with x .

Also x = 7 when y = 18

To Find:

y = ? when x = 17

Solution:

y varies directly with x .

i.e. y is directly proportional to x

∴ y = k\times x

Where

k = constant of proportionality {Remain Same}

First we will find constant of proportionality k,

∴ When x = 7 and y = 18 we have

∴ 18 = k\times 7\\\\k=\frac{18}{7}

Now when x= 17 and k=\frac{18}{7} we have

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3 0
3 years ago
2x+1y=-9<br><br> Please help
xenn [34]

Answer:

x=-(9+1y)/2

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Step-by-step explanation:

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-1y=2x+9

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5 0
3 years ago
Find the sum 1.56 + 0.083. Show your reasoning
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Answer:

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Step-by-step explanation:

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Answer:

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Draw a closed circle on -10 and in the direction all the way towards the right arrow.

4 0
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