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Yuri [45]
3 years ago
5

Write the expression in standard form

frac{7}{3-15i}" alt="\frac{7}{3-15i}" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
valentina_108 [34]3 years ago
4 0

<em>Answer:</em>

<em>7/78 - 35/78i</em>

<em>Step-by-step explanation:</em>

<em>A complex number is a real number, an imaginary number or a number with both real and imaginary number. Its standard form is: </em>

<em>a + bi </em>

<em> </em>

<em>For the expression, 7/ 3-15i </em>

<em> </em>

<em>(7/ 3-15i) (3+15i) </em>

<em>21 - 105i / (234) </em>

<em>7/78 - 35/78i </em>

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1/2(4y+6)=4-2(y-6)/3​
Advocard [28]

Step-by-step explanation:

1/2(4y+6)=4-2(y-6)/3= -2

step by step explaining

subtract 2 with 3 to get -1

then add 1 to it to get -2 so the answer is -2

3 0
3 years ago
What equation is graphed in this figure?
oksian1 [2.3K]
The answer would be the second one:
<span>y+2=−3/2(x−2)</span>
5 0
4 years ago
If v = -5, what does 4v - 3 equal? (Explain aswell)
OleMash [197]

Answer: Answer= -23

Step-by-step explanation: plug in -5 for v. THen multiply 4 and -5 which should give you -20. then subtract -3 from -20 which will give you -23. :)

6 0
3 years ago
Read 2 more answers
Jasmine's credit card has a $2,000 balance that she carried over from last month. assuming her credit card charges an 18 percent
NikAS [45]

Using simple interest, it is found that her interest charge this month will be of $30.

<h3>Simple Interest</h3>

Simple interest is used when there is a single compounding per time period.

The amount of interest after t years in is modeled by:

I(t) = Prt

In which:

  • P is the initial amount.
  • r is the interest rate, as a decimal.

In this problem, considering the time in years, the parameters are:

P = 2000, r = 0.18, t = \frac{1}{12}

Hence:

I(t) = 2000 \times 0.18 \times \frac{1}{12} = 30

Her interest charge this month will be of $30.

More can be learned about simple interest at brainly.com/question/25296782

4 0
3 years ago
FOR 100 POINTS!!!!!!!!!!!<br><br>Solve the equation. <br><br><br>3(4x + 4) = 2(5x + 9) - 12
Tatiana [17]

Answer:

<h3>X=-3</h3>

Step-by-step explanation:

Isolate x on one side of the equation.

<u><em>DISTRIBUTIVE PROPERTY</em></u>

A(B+C)=AB+AC

A(B-C)=AB-AC

3(4x+4) (First, expand.)

3*4x=12x

3*4=12

12x+12

2(5x+9)-12

2*5x=10x

2*9=18

10x+18

18-12=6

12x+12=10x+6

12x+12-12=10x+6-12 (Subtract 12 from both sides.)

6-12 (Solve.)

12-6=6

12x=10x-6

12x-10x=10x-6-10x (Subtract 10x from both sides.)

12x-10x (Solve.)

12x-10x=2x

2x=-6

2x/2=-6/2 (Then, divide by 2 from both sides.)

-6/2 (Solve.)

-6/2=-3

x=-3

As a result, the final answer is x=-3.

6 0
4 years ago
Read 2 more answers
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