Mathematics High School

(-2+4i) - (8+2i) if i is imaginary

Answers

Answer 1

Answer:

-10 + 2i

Yes, it is imaginary

Step-by-step explanation:

[tex](-2+4i) - (8+2i) \\ \\ = - 2 + 4i - 8 - 2i \\ \\ = - 2 - 8 + 4i - 2i \\ \\ = - 10 + 2i[/tex]

Related Questions

if there are 300 seventh graders, and 80% passed the benchmark, how many passed the benchmark

Answers

Answer:

240 seventh graders passed

Step-by-step explanation:

300 x 0.8 = 240

w – 9 = 22 what is w

Answers

Answer:

31............

Step-by-step explanation:

22+9=31

Answer:

it is -13

Step-by-step explanation:

9-9-x=22-9 x=-13. 9-(-13)=22 brainliest please

PLEASE SOLVE WILL MARK BRAINLIESTTTT
Jordan and his children went into a movie theater and will buy drinks and candies. He must buy at most 15 drinks and candies altogether. Write an inequality that would represent the possible values for the number of drinks purchased, d, and the number of candies purchased, c.

Answers

Answer:

d+c less than or equal to 15  

Linda received 3/5 of the votes in the election for student council president. What percent of the votes did Linda receive

Answers

Answer:

60.

Step-by-step explanation:

Answer:

[tex]60%[/tex][tex]%[/tex]%

Can u gimme brain plz!

figure out the riddle

Answers

Answer:

Four

Step-by-step explanation:

All the animals are on the bed, but the bed itself has four legs.

Answer: 6

Step-by-step explanation: the legs from the bed, and your 2 legs

A carnival is selling red tickets for rides and yellow tickets for games. The red tickets are $1.25 each and the yellow tickets are $0.75 each. The total number of tickets sold was 1,032 and the total sales was $979. Let r represent the number of red tickets sold and y represent the number of yellow tickets sold. Which pair of linear equations can be used to find the number of red tickets sold?
{ r + y = 979 0.75 r + 1.25 y = 1,032
{ r + y = 1,032 0.75 r + 1.25 y = 979
{ r + y = 979 1.25 r + 0.75 y = 1,032
{ r + y = 1,032 1.25 r + 0.75 y = 979

Answers

Answer:

Your answer.

Equation is D

R = 622

Y = 410

Thank you. And give my answer as Brainlist answer. Follow me for more

Step-by-step explanation:

Json has 4 gallons of hand sanitizer that contains 25% alcohol. He want sto make a hand santizer that contains 50% alchahol. How many gallons of pure alcohol should he add?

Answers

Answer:

2

Step-by-step explanation:

1+x/4+x = 1/2

4+x = 2 + 2x

x = 2

Mr falcone pizza shop offers three sizes of pizza the large pizza has a diner tee of 12 inches what is the largest pizza

Answers

Answer:

37.68

Step-by-step explanation:

One week Tony bought 6 soft shell tacos and 2 hard shell tacos for $12. The next week he bought 3 soft shell tacos and 1 hard shell tacos for $6. Write a system to find the cost for each type of taco. Explain your answer.

Answers

S - Soft
H- Hard

6s + 2h = 12
3s + 1h = 6

Answer: $1.50 each for soft taco
$1.50 each for hard taco

Right answer gets brainlist

Answers

455 would be ur answer
455 is the answer because it’s a square with 7 mm 13mm and 5 mm then just multiply

Which of the following numbers is irrational? Helpppp please!!!!... due in 2 minutes!!!!.

Answers

I do believe the answer is the last one.
3

Which segment is a reflection of segment AB over the line x = 1?
Line segment C D
Line segment E F
Line segment G H
Line segment I J

Answers

Answer:

EF

Step-by-step explanation:

this line is a mirror version of AB when you reflect it across x=1

Hope this is helpful! :))

Answer:

EF

Step-by-step explanation:

Edge2021

Given the expression (−2x2)(3x)(x), Jose says that different products occur if the order of the quantities being multiplied changes. Is Jose correct? Explain.

Answers

Answer:

Jose is incorrect.

Step-by-step explanation:

Using the communitive property, you can rearrange (-2x2), (3x), and (x) in the problem and get the same product. You can rearrange it to (3x)(x)(-2x2). You can rearrange it to (3x)(-2x2)(x). Now matter where you rearrange them, the equation will always have the same product.

PLS HELP ASAP who ever answers gets the brainiest
Solve for x.

−34(x+2)=6

Answers

Answer:

i have made it in above picture

Help pls! If one front-loader operator can dig 6 cubic yards of dirt per minute, how many hours
would it take two front-loader operators working together at the same rate to dig a snow
making a trench that requires removal of 3250 cubic yards of dirt?

Answers

Answer:

4.51389

Step-by-step explanation:

6*2=12 yd³/min

12*60= 720 yd³/hour

3250÷ 720 yd³/hour = 4.51389 hours

4.51389

Problem of the Day 7.7
Joshua swims 18 laps every day at swim practice. If he swims every day for 32 days, how many laps has he completed?

Answers

Answer:

576

Step-by-step explanation:

18 x 32 = 576

What is the slope of (-2,4) and (10,-20)?



Thanks to whoever answers.

Answers

Answer:

m=-2

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

Philip's bill for lunch at a restaurant was $7. He left a 15% tip. What was the amount of the
tip?

Answers

Answer:$1.05

Step-by-step explanation:

Step-by-step explanation:

:

=$7×15/100

=$1.05

x− 4 ≤ 3 explain how to solve

Answers

Answer:

x ≤ 7

Step-by-step explanation:

1. add 4 to both sides x-4+4 ≤ 3+4

2. simplify x ≤ 7

Answer:

x≤7

Step-by-step explanation:

You want to isolate the variable to one side to get the answer. This is a one step inequality. You need to add 4 to both sides. x-4 +4 is x. 3+4 is 7. the Answer is x≤7

What is the answer to this?

Answers

Answer:

its the second answer i hope that helps

Answer:

Step-by-step explanation:

i have no idea

Given: ABCD is a parallelogram.
Prove: AB = CD and BC = DA

(ANSWER)
I had to go through this whole thing myself and it's a terrible way to learn, big waste of time. Just watch Kahn Academy for your own sake.

EGE '21

Answers

brb will answer very

Answer: answer just did on ege

Step-by-step explanation:

PLS HELP ASAP
Which expression shows the result of applying the distributive property to 9(2+5m)?

18+45m
2+45m
11+14m
18+5m

Answers

Answer:

18+45m

Step-by-step explanation:

9x2= 18

9x5m= 45m

18+45m

The answer is D

I got it roght on the assignment

Select all the equations where x = 3 is a solution.


Choose 2 answers:


А )x +4= 7

B) = 3 9 5 - 2 = 2

D) 8x = 32

E )X – 10 = 7​

Answers

Answer:

Step-by-step explanation:

X +4=

8x=32

Y=2(-8)+7. How do I do this ???

Answers

Answer:

y=−9

Step-by-step explanation:

Let's solve for y.

y=(2)(−8)+7

Answer:

y=-9

Step-by-step explanation:

Y=2(-8)+7

first multiply

Y=-16+7

add like terms

y=-9

Pippin owns 2 cats, 3 dogs, and a lizard as pets. What is the ratio of the number of cats to the total number of pets Pippin owns?
Choose 1 answer:
is it
A 1/6
B 1/3
C 2/5
D 1/2
or E 2/3

Answers

Answer: B) 1/3

2 cats/6 total animals

simplified is 1/3

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

plz make me brainliest

Please help me to solve the 5th part!​

Answers

Step-by-step explanation:

hope this will help you.

hey please help with giving brainliest

Answers

Answer:

I think second bullet point

Step-by-step explanation:

Answer:

B adjacent

Step-by-step explanation:

angles aren't complementary because complementary angles add up to 90 and we don't know the values.

they are not vertical because they are not vertical to each other

I hope this helped you :)

Solve the following equation by using properties of logarithms.

500 / (1 + e^-5x) = 300

Answers

Step-by-step explanation:

in the 6 th process I've used natural logarithm ln and ln(e)=1.

if the answer is required in decimal u can substitute the value in calculator.

hope it helps

Find the difference in slopes. Can anyone help me with this? I need it, its a grade for my mah class.

Answers

Answer:

Slope of the graphed line, using 2 points (-1, 3) and (0, 0):

m₁ = 3/-1 = -3

Slope of the line containing the points (-6, 2) and (-9, 5):

m₂ = (5 - 2)/(-9 - (-6)) = 3/-3 = -1

The difference in number between the slopes:

-3 - (-1) = -2

The difference in slopes:

The slope of the graphed line is 3 times steeper.

Answer:

i like to know this answer

List and appraise a piece of music base on timbre

Which equation matches the graph shown?

Answers

Answer:

A

Step-by-step explanation:

Since it is upside down, it is the one with the negative sign in front of the x. The numbers will continue to increase in the negatives.

Answer:

ur ans is A

Step-by-step explanation:

GOODLUCK

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