Mathematics High School

5. Find the magnitude of 4i + 3j​

Answers

Answer 1

Answer:

5

Step-by-step explanation:

The magnitude of the complex number is expressed as;

|z| = √x²+y²

Given the complex number z = 4i+3j, x = 4 and y = 3

Substitute

|z| = √x²+y²

|z| = √3²+4²

|z| = √9+16

|z| = √25

|z| =5

Hence the magnitude is 5

Related Questions

Can you help me please?​

Answers

Answer:

D

Step-by-step explanation:

What is the value of t in the equation 2t-8+4t-13=27

Answers

Answer:

t=8

Step-by-step explanation:

A side of the triangle below has been extended to form an exterior angle of 156°. Find
the value of x

Answers

Answer:

x=24

Step-by-step explanation:

again 180-156=24

super easy remember exterior +interior angles add up to 180

Brainliest please

First angle = 105

Second angle = x

Third angle = 156 - 105

= 51

_________________________________________

Three angles of the triangle:

[tex]105[/tex]

[tex]x[/tex]

[tex]51[/tex]

___________________________________________

Angle sum of triangle = 180°

[tex]105 + 51 + x = 180[/tex]

[tex]156 + x = 180[/tex]

[tex]x = 180 - 156[/tex]

[tex]x = 24[/tex]

simplify to create an equivalent expression 4(3x +2) - 7x

Answers

Answer:

5x + 8

Step-by-step explanation:

To create an equivalent expression, we are going to simplify the expression as far as we can. To do this, we are going to first distribute what we can.

1. 4(3x+2) -7x

2. Distribute the 4.

3. 12x + 8 - 7x

4. Combine like terms.

5. 12x - 7x = 5x

6. 5x + 8

YOU HAVE A SWELLING INJURY. DO YOU USE….
Heat or ice?

Answers

Answer:

Ice would be the correct answer.

Answer:

if u want go to the doctor but use ice but if its to cold use a little heat not too much tho

Step-by-step explanation:

If you have injured your neck and are experiencing swelling, you should ice the area for at least 72 hours. After icing, you can use heat to help any lingering pain. Tight neck muscles and old injuries can benefit from heat only, as long as there isn’t any swelling.

evaluate the expression 7x if x=11
A.18
B.77
C.4
D.711

Answers

7(11)= this is because when you multiply both B.77. you get one answer

3/5 divided by 2 1/2

Answers

Step-by-step explanation: To divide mixed numbers, first rewrite the mixed numbers as improper fractions.

So here, 3/5 is already a fraction and 2 and 1/2 can be written as 5/2.

Remember that dividing by a fractions means the same thing

as multiplying by the reciprocal of that fraction.

In other words, 3/5 ÷ 5/2 can be rewritten as 3/5 · 2/5.

Finally, multiplying across the numerators and the

denominators, we have 6/25.

The result of the division of 3/5 divided by 2 1/2 is: 6/25.

Here, we have,

given that,

3/5 divided by 2 1/2

To divide mixed numbers, first rewrite the mixed numbers as improper fractions.

So here, 3/5 is already a fraction and 2 and 1/2 can be written as 5/2.

Remember that dividing by a fractions means the same thing

as multiplying by the reciprocal of that fraction.

In other words, 3/5 ÷ 5/2 can be rewritten as 3/5 · 2/5.

Finally, multiplying across the numerators and the

denominators,

we have 6/25.

To learn more on division click:

brainly.com/question/21416852

#SPJ6

Plz helppppppp plzzzzz

Answers

Answer:

let me try

Step-by-step explanation:

if the dot means times it’s 2^72 but if it doesn’t then it will be 2^17 i may be wrong but that what i think it would be

Which graph shows a non-proportional linear relationship between x and y?

Answers

A parabola does because it does

Need help with question 12 ASAP ill love you forever

Answers

Answer:

A

Step-by-step explanation:

You solve for x so,

Y=3-5x

y-3=5x  <----- subtract by 3

3/5+y=x <------ divide by -5

Also (3/5,0) is at the x value

17. What is the value of 1 +-6-(-3.5)?

Answers

Answer:

-1.5

Step-by-step explanation:

negative times negative equals positive so:

1 +-6-(-3.5)

1 + -6 + 3.5

add

-5 + 3.5

-1.5

Answer:

1.5 please like! mark brainliest

Step-by-step explanation:

I need help please ​

Answers

Answer:

I can't see the photo very well, can you retake it?

Step-by-step explanation:

Find the value of x?

Answers

Answer:

15.09

Step-by-step explanation:

By angle bisector property of a triangle, we have:

[tex] \frac{x}{17.1} = \frac{6}{6.8} \\ \\ x = \frac{17.1 \times 6}{6.8} \\ \\ x = \frac{102.6}{6.8} \\ \\ x = 15.0882353 \\ \\ x \approx15.09[/tex]

evaluate 9.3s + 8.5t when s=7 and t=8

Answers

Answer:

17.95

Step-by-step explanation:

Answe please, which choice

Answers

Answer:

Both Reflectional and Rotational

Step-by-step explanation:

The area of a rectangle is 40 square inches. The
rectangle is 8 inches long. How wide is the rectangle?

Answers

5 inches because. If you know your times tables you will easily know that 5x8=40 or you could have divided 40 by 8 to get 5.

Whoever helps gets BRAINLIEST

Answers

Answer:

6 is the correct answer.

The correct answer should be 6

You are choosing between two health clubs. Club A offers membership for a fee of $60 plus a monthly fee of $85. Club B offers membership for a fee of
$35 plus a monthly fee of $90. After how many months will the total cost at each health club be the same?
A.5
B.6
C.4
D. They will never be the same, Club B will always be a higher cost.

Answers

Answer:

The answer is D. But Club A will always be  a Higher price

Which of the following is the best description of a person-versus-society conflict?
A.
an argument or a physical fight between two people
B.
a person who is fighting against an idea or a group
C.
a person who is trying to benefit from being part of a group
D.
a person who is helping others who are poor and weak
E.
a person who is trying to make a decision

Answers

Answer:

B

Step-by-step explanation:

Answer:

im pretty sure b

Step-by-step explanation:

Which slope is the steepest?
y = 10x
y = 0.3x
y = 5x
y = 0.7x

Answers

Answer:

y = 10x

Step-by-step explanation:

*Remember the equation of a line is y = mx + b

Attached are each of the options graphed. As m increases, the slope becomes steeper. The blue line, y = 10x is the steepest of them all.

Hope this helps!

What is the slope of any line parallel to the graph of y = 8x + 20?

Answers

Answer:y=mx+b

m=slope

Step-by-step explanation:

the slope is 8

The slope of line is 8.

Given that,

Graph is y = 8x + 20We need to find the slope of line.

According to the scenario, calculation of data are as follows,

Formula for slope of parallel line is as follows,

y = mx + b ( where m = slope)

So, by comparing both equations we get,

m = 8

or slope of line = 8

Learn more : https://brainly.com/question/14548945

PLEASE HELP! MARKING BRAINLIEST!

Answers

Answer:

In the first one, the decimal moves twice. In the second, once, none in the third, andin the fourth, four times.

What is the slope of the line? Please explain your answer.

A.) m=5

B.) m= -5

C.) m=1/5

D.) m= -1/5

Answers

The answer is D

At first glance we can see the slope of the line is negative. Automatically A and C are incorrect. Slope is y/x, we go 1 space down and 5 spaces to the right. (Run over rise)

Answer: D

Step-by-step explanation: Assuming the left point is A at (-2,2) and the right point is B at (3,1) we can determine the slope by using the “Rise over Run” rule where the change in Y is the “Rise” and the change in X is the “Run”. By setting up the equation y2-y1/x2-x1 we can plug in the coordinates from the variables and get 1-2/3+2 which leaves us with our answer m= -1/5

Divide the polynomials.
Your answer should be a polynomial.

Answers

I believe the answer is x^2 + 2

I hope that this is correct and that it helps✨❤️

Justify Step 3 of this Proof

Answers

Segment AC is equal to CA by Reflexive Property.

2 and 9 multiples of 2??

Answers

Is 2 and 9 multiples of 2?

2 is a multiple of 2 but 9 isn't

Helppp! I’m stuck on this . What is the weekly profit ?

Answers

Answer:

$901

Step-by-step explanation:

x=37units

48 (37) - 875

1776-875

901

18 movie goers bought tickets on-line. This represents 30% of the total people going to the same movie. How many people are seeing the movie?

Answers

Answer:

60

Step-by-step explanation:

[tex]0.3 \times x =18 \\ x = 18 \div 0.3 \\ x = 60[/tex]

Given f(x)= square root x and g(x) = lxl, which is the graph of (fog)(x)

Answers

Answer:

drawing the graph of [tex]f(g(x))=\sqrt{|x|}[/tex]

The graph is attached in the images below.

Option A is correct option.

Step-by-step explanation:

We are given:

[tex]f(x)=\sqrt{x}[/tex] and [tex]g(x)=|x|[/tex]

We need to find graph of  (fog)(x)

We know that (fog)(x)= f(g(x))

Placing x=g(x) i,e x=|x|

[tex](fog)(x)= f(g(x))\\f(g(x))=\sqrt{|x|}[/tex]

Now, drawing the graph of [tex]f(g(x))=\sqrt{|x|}[/tex]

The graph is attached in the images below.

Option A is correct option.

Answer:

The first graph

Step-by-step explanation:

A on edge

What is the equation of this line?
y= 4x
y= 1/4x
y = -4x
y=-1/4x​

Answers

Y=4/1x
Hope this helps
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