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Vaselesa [24]
3 years ago
6

Find the real number X and y such that 3x + 2iy ix+ 5y = 7+5i​

Mathematics
1 answer:
OLga [1]3 years ago
6 0

Answer:

y=8 and x =-11

Step-by-step explanation:

kinda confused by the setting of the question

but i used this form ; 3x + 2iy+ xi + 5y = 7 + 5i instead of 3x+2iy xi+5y =7+5i

Then ;

you compare

3x + 5y =7....... equation 1

2iy + xi = 5i. ( cancel out i)

u get ; 2y + x =5 .......equation2

solve simultaneously by substitution method

giving u y=8

put value of y into equation 2 and get x=-11

hope that helps

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Simplify y-2/3/y+1/5
liberstina [14]

Answer:

\frac{15y-10}{15y-3}

Step-by-step explanation:

First at all, we need to use a=\frac{a}{1} to convert this expression into a fraction, like:

y-\frac{2}{3} to convert into \frac{y}{1} -\frac{2}{3}.

Expand the fraction to get the least common denominator, like

\frac{3y}{3*1}-\frac{2}{3}

Write all numerators above the common denominator, like this:

\frac{3y-2}{3}

The bottom one used the same way to became simplest form, like this:

y+\frac{1}{5}

\frac{y}{1} +\frac{1}{5}

\frac{5y}{5*1}+\frac{1}{5}

\frac{5y+1}{5}

And it became like this:

\frac{3y-2}{3}/\frac{5y+1}{5}

Now, we are going to simplify this complex fraction. We can use cross- multiply method to simplify this fraction.

\frac{3y-2}{3}*\frac{5y+1}{5}

3y-2(5) and 5y-1(3)

and it will becomes like this in function form:

\frac{3y-2(5)}{5y+1(3)}

Then, we should distribute 5 through the parenthesis

\frac{15y-10}{5y+1(3)}

\frac{15y-10}{15y+3}

And.... Here we go. That is the answer.

7 0
3 years ago
Find a irrational number between 5.2 and 5.3 .. Explain why its irrational. Include the decimal approximation of thr nearest hun
mihalych1998 [28]

\sqrt{28}
It is in between
\sqrt{25}
And
\sqrt{36}
There for it is in between 5 and 6
Additionally, it is closer to root 25, meaning that it is closer to 5

Rounded to the nearest hundredth is

5.29
4 0
3 years ago
Can someone help me?
ruslelena [56]

Answer:

Step-by-step explanation:

Yeah.I would be glad to.

What do you need help with?

8 0
4 years ago
Find the measure of one exterior angle for the following regular polygon.
JulsSmile [24]

Answer:

72º

Step-by-step explanation:

<em>Hey there!</em>

Well the interior of a pentagon's angle is 108º,

so we do,

180 - 108 = 72º

<em>Hope this helps :)</em>

8 0
3 years ago
Read 2 more answers
What’s the answer and work for this? Someone please tell me
Nadusha1986 [10]

Answer:

<h2>The averages are equal, since both are 4.</h2>

Step-by-step explanation:

2 + 4 + 6 = 12 / 3 = 4

Average of even numbers = 4

1 + 3 + 5 + 7 = 16 / 4 = 4

Average of odd numbers = 4

The averages are equal, since both are 4.

<em>Hope that helps!</em>

8 0
3 years ago
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