What is the sum of 12 – 5i and –3 + 4i?

Answers

Answer 1

Answer:

10i and 7i

Step-by-step explanation:

Answer 2

Step-by-step explanation:

(12-5i)+(-3+4i)

12-5i-3+4i

12-3-5i+4i

9-1i

Hope it helps


Related Questions

Reflect shape A in the line x = -2

Answers

The reflection of shape from x = -2 shown below.

What is Transformation?

A point, line, or geometric figure can be transformed in one of four ways, each of which affects the shape and/or location of the object. Pre-Image refers to the object's initial shape, and Image, after transformation, refers to the object's ultimate shape and location.

We have,

To reflect the figure from x= -2.

Then, the coordinates of object after reflection is

(-1, -1)

(1, -1)

(-1, -4)

(0, -4)

(1, -3)

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The family is having grilled steak for dinner. Ian gets a 7-ounce steak. He eats 1/2 of it. How many ounces of steak does he eat?

Answers

Answer:

3.5 ounces

Step-by-step explanation:

jennifer scored 75 on her quiz last week. this week she scored 90. what was the percent of increase on the quiz score?

Answers

Answer:

The answer is a 20% increase

Hope this helps!

Mark me brainliest if I'm right :)

Two angles in a triangle measure 28° and 93º. What is the measure of the third angle?

O 59
O 87
O 121
O152

Answers

Answer:

rather 59 or 87?

Step-by-step explanation:

Which set of 3 angles could represent the interior angles of a triangle?


34

∘, 45

∘, 11



49

∘, 59

∘, 72



49

∘, 70

∘, 85



24

∘, 51

∘, 15

Answers

9514 1404 393

Answer:

  (b)  49°, 59°, 72°

Step-by-step explanation:

The sum of the interior angles of a triangle is 180°. The only answer choice with that sum is the second one.

  49°, 59°, 72°

2x²-5x+2=0 solve for x​

Answers

[tex]{ \huge {\underline {\underline {\mathfrak {\purple{Answer}}}}}}[/tex]

[tex] \longmapsto{2 {x}^{2} - 5x + 2}[/tex]

[tex] \longmapsto{2 {x}^{2} - 4x - x + 2}[/tex]

[tex]\longmapsto{2x(x - 2) - 1(x - 2)}[/tex]

[tex]\longmapsto{(2x - 1)(x - 2)}[/tex]

[tex] \boxed{ \huge x = \huge\dfrac{1}{2} \: or \: 2}[/tex]

What is the period of the graph of

Answers

I think it is 8 I’m pretty sure

solve for the variable in 6/18=?/36

Answers

Answer:

12

Step-by-step explanation:

since 36 is double 18, you would then double 6. what you do to one side, you do to the other:)

Answer:

? = 12

Step-by-step explanation:

18  ⋅ 12  =  36 , multiply the numerator  

6  by  2  to get   12 .

Can someone help me figure this out please? Derek has 277 stickers. What number can you use to describe how many stickers Derek has? Explain how you decided.

Answers

Maybe they are referring to the word sum. So Derek has a sum of 277 stickers or Derek has a total of 277 stickers?

I NEED HELP ON THIS QUICKLY PLEASE

Answers

Answer:

C

Step-by-step explanation:

If you expand C  you will find it to be true

The difference between the squares of two numbers is aperiod twice the square of the first number increased by the square of the second number is 19. Find the numbers.

Answers

numbers are are x and y
x^2-y^2=5
3x^2+y^2=31
Add them
4x^2=36, the y^2 disappear
x^2=9
x=3 and -3
check both
x=3, y=2 or -2
x=-3, y=2 or -2
(3, 2) (3, -2) (-3, 2) (-3, -2)

Find the area of the shaded region:

Answers

Answer:

34560

Step-by-step explanation:

You have to multiply to get your answer

Hope I'm right...

Hope this helps plz like and brainly :D

FOUR balls are selected from a bag containing 15 red and 5 blue balls. What is the probability that:
(a) exactly 3 are red if the balls are replaced each time?
(b) exactly 3 are red if the balls are not replaced?

Answers

The answer would be it’s exactly 3 are red if the balls are not replaced so B

Find the number of distinct arrangements of the 9 letters in SEVENTEEN. Two of the same letter are considered identical (not distinct).

Answers

The number of distinct arrangements of the 9 letters in SEVENTEEN is 7560

The number (n) of letters in SEVENTEEN is given as:

[tex]n = 9[/tex]

The repeated letters are E and N, and their frequencies are:

[tex]E=4[/tex]

[tex]N = 2[/tex]

So, the number of distinct arrangements is calculated as:

[tex]Arrangements = \frac{n!}{E!N!}[/tex]

Substitute values for n, E and N

[tex]Arrangements = \frac{9!}{4! \times 2!}[/tex]

Expand the factorials

[tex]Arrangements = \frac{362880}{24 \times 2}[/tex]

[tex]Arrangements = \frac{362880}{48}[/tex]

Evaluate the quotient

[tex]Arrangements = 7560[/tex]

Hence, the number of distinct arrangements is 7560

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Alisa has a bunch of coins. She has pennies. She has nickels. She has dimes. She has quarters. They lie in one big pile. Alisa wants to organize her coins. So she goes into her cupboard and finds four jars. Each jar has a different shape and size. Alisa puts the pennies into one jar. She puts the nickels into another jar. She puts the dimes into another jar. She puts the quarters into another jar. Then she puts all four jars on the table and steps back. Looking at them, Alisa scratches her head.( look at pic! )

Answers

not enough information is provided

Not enough information is provided to answer Because there aren't being given an exact amount of each currency. So the correct option is E.

How to find that which jar of alisha is most worth?

We have been given information;

Alisa has a bunch of coins. She has pennies. She has nickels. She has dimes She has quarters. They lie in one big pile.

Alisa wants to organize her coins So she goes into her cupboard and finds four jars.

Each jar has a different shape and size. Alisa puts the pennies into one jar and puts the nickels into another jar.

She puts the dimes into another jar. She puts the quarters into another jar Then she puts all four jars on the table and steps back.

Not enough information is provided to answer Because there aren't being given an exact amount of each currency, there is no way to know for sure which jar would have the most money in it.

So the correct option is E.

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the values at which the graph of polynomial crosses the _-axis are called "roots" and are the values for which the y-value is zero.

Answers

Answer:

x- axis

Step-by-step explanation:

The blank is the x-axis

Here you go can you answer it now I need it ASAP please.

Answers

Answer:

I think both A and B would work,


What is the horizontal asymptote of the function F(x)=(x-2)/(x-3)^2

O y = 0
O y = 1
O y = 2
oy=3

Answers

Y=0 there is no horizontal asymptote so it is 0

The horizontal asymptote of the function f(x) = (x - 2)/(x - 3)²is;

A: y = 0

We are given the function;

f(x) = (x - 2)/(x - 3)²

Expanding the denominator gives us;

f(x) = (x - 2)/(x² - 6x + 9)

The rules for a horizontal asymptote are;

If the degree of the polynomials in both denominator and numerator of a rational function are the same, then the horizontal asymptote will be expressed as the quotient of coefficients of the highest degree terms.

If the polynomial of the denominator has a larger degree than the numerator, then the horizontal asymptote will be y = 0.

In our given expression, we can see that the degree of the denominator polynomial is greater than that of the numerator and as such the horizontal asymptote is y = 0.

Read more about horizontal asymptote at; https://brainly.com/question/6459599

A rectangular prism has a surface area of 8 square feet. A similar rectangular prism has a surface area of 200 square feet. How many times larger are the dimensions of the larger prism?

5
10
25
625

Answers

The number of times larger the dimensions of the larger prism with surface area of 200 ft² to the smaller prism of 8 ft² is 25 times.

Surface area of a rectangular prism

The surface area of a rectangular prism is as follows;

surface area = lwh

where

l = lengthw = widthh = height

Therefore,

surface area of the first prism = 8 ft²

surface area of the second prism = 200 ft²

Therefore, the number of times larger the dimensions of the larger prism with surface area of 200 ft² to the smaller prism of 8 ft² is as follows;

200 / 8 = 25

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25, I got it right on my lesson... The other person is correct!!!!!!!

PLS HELP I WILL MARK YOU BRAINLIEST!!!! The table represents some points on the graph of an exponential function.
Which function represents the same relations?

Answers

Answer:  Choice Bf(x) = 18(6/5)^x

====================================================

Explanation:

When x = 0, we have y = 18. The y intercept value is 18. This is the initial value, and it's the value of 'a' in the equation below

y = a*b^x

The value of b is tied to the growth or decay rate, depending on if b > 1 or if 0 < b < 1 respectively.

In this case, we have growth due to y increasing as x increases. They increase together.

When x increases by 1 like this, the value of b can be determined by dividing any y term over its previous value. So for instance, we can say b = 21.6/18 = 1.2 or we could say b = 25.92/21.6 = 1.2

Then note how 1.2 = 6/5, which means b = 6/5

Therefore, y = a*b^x becomes y = 18(6/5)^x

--------------

We can confirm this equation by plugging in x values from the table and we should get the y values, or f(x) values, listed

Example: plug in x = 0 to find that

y = 18(6/5)^x

y = 18(6/5)^0

y = 18(1)

y = 18 which matches

Then try x = 1

y = 18(6/5)^x

y = 18(6/5)^1

y = 18(1.2)

y = 21.6 that also matches

I'll let you confirm the other x values.

A cylinder has no lateral faces.

a. true
b. false

Answers

Answer: it’s a

Step-by-step explanation:

A. True



Hope it helps!!

PLEASE HELP I WILL MARK YOU BRAINLIEST!!
Frank earns x dollars every week. Each week he saves all of his money except $20, which he spends on food and gas. The rest of the money he deposits in his bank account. If he saved $260 over 4 weeks, how much money does Frank earn every week?

Answers

Answer:

85 dollars

Step-by-step explanation:

Big brain

HELP ME PLEASEEEEEEEEEEE

Answers

Answer:

12

Step-by-step explanation:

12-8=4

p=12

Answer:

p is equal ro 12

Step-by-step explanation:

4=p-8

add 8 to both sides and you get 12=p

can someone help me with this?!!

Answers

Answer:

Slope: -2, y-intercept: -8

Step-by-step explanation:

y = mx + b

m is slope. Subtraction sign means negative slope.

b is y-intercept

Please help and explain, I’ll mark you as brainiest

Answers

Answer: (c)

Step-by-step explanation:

Given

The sticker price is $40,000

The option price is $6000

Destination fees are $800

The base sticker price is 90% of the price i.e.

[tex]\Rightarrow 90\%\times 40,000\\\Rightarrow 0.9\times 40,000\\\Rightarrow \$36,000[/tex]

The option price is 80% of included options i.e.

[tex]\Rightarrow 80\%\times 6000\\\Rightarrow 0.8\times 6000\\\Rightarrow \$4800[/tex]

Dealers cost is given by the sum of three costs

[tex]\Rightarrow 36000+4800+800\\\Rightarrow \$41,600[/tex]

Thus, option c is correct.

I need help please ASAP

Answers

H. 200 miles in 4 hours

represents a constant rate of change of 50 miles per hour.

Answer:

H. 200 miles in 4 hours.

Step-by-step explanation:

200 miles in 4 hours.

In this situation, in 4 hours, the vehicle has driven a distance of 200 miles.

To determine the distance in one hour, divide the miles by the hour.

200 ÷ 4 = 50.

The vehicle drives at a constant rate of 50 miles per hour.

Is this problem 18 points scored in 3 games and 20 points scored in 5 games.
proportional or not proportional?

Answers

Answer:

not proportional

Step-by-step explanation:

mrk brainliest

What is the mean of 9, 25, and 53?

3

9

25

29

Answers

Answer:

29

Step-by-step explanation:

9 + 25 + 53

87

87 ÷ 3

29

Answer:

29

Step-by-step explanation:

add all the numbers up and divide by how many numbers there are.

I'm testing something, so you can just take the points if you want I don't care.

Answers

Answer:

...Okay thank you!

Step-by-step explanation:

...... :)

Answer:

Hello random person, thanks for the points! <3

HELP ASAP What is the area and perimeter of the figure?

Answers

Answer:

Area: 4,200 ft²

Perimeter: 300 ft

Step-by-step explanation:

Area:

(10 x 20) + (20 x 20) + (70 x 60)

=200 + 400 + 4200

=4,200 ft²

Perimeter:

60 + 70 + 60 + 20 + 20+ 40 + 20 + 10 = 300

I think the area is 4,200
Perimeter 300
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