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dalvyx [7]
3 years ago
10

What is 18+7x-12+5x=?

Mathematics
1 answer:
Eduardwww [97]3 years ago
8 0

Answer:

Step-by-step explanation:

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Find the values of x and y<br><br> 1-2i/ 2+i + 4-i/3+2i = x+iy
lina2011 [118]

Answer:

x=\frac{10}{13} and y=-\frac{24}{13}

Step-by-step explanation:

The given complex number equation is:

\frac{1-2i}{2+i}+\frac{4-i}{3+2i}=x+yi

We simplify the LHS and compare with the RHS

We collect LCD on the left to get:

\frac{(1-2i)(3+2i)+(4-i)(2+i)}{(2+i)(3+2i)}=x+yi

\frac{3+2i-6i+4+8+4i-2i+1}{6+4i+3i-2}=x+yi

Simplify to get:

\frac{16-2i}{4+7i}=x+yi

Rationalize the LHS:

\frac{(16-2i)(4-7i)}{(4+7i)(4-7i)}=x+yi

Expand the numerator using the distributive property and the denominator using difference  of two squares.

\frac{64-112i-8i-14}{16+49}=x+yi

Simplify to get:

\frac{50-120i}{65}=x+yi

\frac{10-24i}{13}=x+yi

\frac{10}{13}-\frac{24}{13}i=x+yi

By comparing real parts and imaginary parts; we have;

x=\frac{10}{13} and y=-\frac{24}{13}

5 0
3 years ago
What is the answer and the equation?
yanalaym [24]

Answer:

<em>Heart=2 </em>

<em>Trapezoid=1</em>

Step-by-step explanation:

<em>I hope this Help</em>

8 0
3 years ago
Pls, help due today!!!!!!!!
kirill115 [55]

Answer:

it 6 because I said so you can't be alone 3PM if you get your school work done in your sleep all the 378feet and I have to eat a

7 0
3 years ago
PLEASE HELP !!!!!!!!!!​
Ulleksa [173]

Answer: y = -1.5x

Step-by-step explanation:

Use y2-y1 over x2-x1.

-6-3/4+2=-9/6

-9/6=-1.5

Plug in either point on the graph as x and y (I used (-2,3))

3=(-1.5)(-2)+b

3=3+b

b=0

Your equation is y = -1.5x+0

(You don't typically write the 0)

4 0
3 years ago
Please help thanks!!
juin [17]

we are given

\frac{\sqrt[3]{7}\sqrt{7}}{\sqrt[6]{7^5}}

we can rewrite it in exponential form

\frac{7^{\frac{1}{3}}*7^{\frac{1}{2}}}{7^{\frac{5}{6}}}

Since, numerator terms are multiplied

so, we can add exponents

we get

=\frac{7^{\frac{1}{3}+\frac{1}{2}}}{7^{\frac{5}{6}}}

=\frac{7^{\frac{5}{6}}}{7^{\frac{5}{6}}}

we can see that numerator and denominator are same

so, they will get cancelled

and we get

=1..............Answer

4 0
3 years ago
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