If x=-5+6i and y=3-2i , then which of the following is the value of the expression 4x-y?

Answers

Answer 1

Answer:

Expression = -23 + 26i

Step-by-step explanation:

Given the following data;

x = -5 + 6i

y = 3 - 2i

Expression = 4x - y

Substituting the values of "x" and "y" into the equation, we have

4(-5 + 6i) - (3 - 2i)

Expanding the bracket, we have;

Expression = -20 + 24i - 3 + 2i

Expression = -23 + 26i


Related Questions

A robot can complete 7 tasks in 5/6 hour. Each tasks takes the same amount of time. A. How long does it take the robot to complete one tasks? B. How many tasks can the robot complete in 1 hour?

Answers

Step-by-step explanation:

5/6 = 50 minutes

50 divided by 7 = (your answer)

Sun-Li has 10 blue marbles, 3 red marbles, and 17 white marbles. Write each ratio in ALL three forms.
a.) blue marbles to red marbles =

b.) red marbles to white marbles =

c.) red marbles to total number of marbles =

Answers

Answer:

a.) 10:3

b.) 3:17

c.) 3:30

Step-by-step explanation:

There is 10 blue marbles, 3 red marbles, and 17 white marbles.

in total there is 30 marbles because 10+3=13 and 13+17=30.

the ratio of blue marbles to red marbles is 10:3 because there is 10 blue marbles to three red marbles.

the ratio of red marbles to white marbles is 3:17 because there is three red marbles to 17 white marbles.

the ratio of red marbles to total number of marbles is 3:30 because there is three red marbles to 30 marbles in total

predict the number of roses in a garden with 16 sunflowers if there are 3 sunflower in a garden with 81 roses

Answers

The answer is a lot of roses

Let f(x) = x^2 - 2 and h(x) = x - 1;
compute h(f(2))

Answers

Answer:

1

Step-by-step explanation:

2^2-2=2

2-1=1

hopefully you will find it helpful

Where is the function increasing?

Answers

9514 1404 393

Answer:

  A)  1 < x < ∞

Step-by-step explanation:

"Increasing" means the graph goes up to the right. This graph is increasing for values of x greater than 1. (x=1 is a minimum. The graph is decreasing toward the minimum on the left of that value, and increasing from the minimum on the right of that value.)

  1 < x < ∞

Answer:

A if your doing prep

Step-by-step explanation:

math

The triangles are congruent by the SSS congruence theorem.




Which transformation(s) can map ΔLMN onto ΔL'M'N'?

translation only

reflection only

rotation then translation

reflection then translation

Answers

Rotation then transition

Answer:

Rotation then Transition C on Edge.

Step-by-step explanation

Because im smart like that

Compute the probability of Carl turning 44 years old (event A), given that Susan has reached the age of 44 (event B).

Answers

Answer:

Events A and B are independent of each other, so it would be 0.95726

Step-by-step explanation:

What is the anti derivative of f'(x)=19x+15?​

Answers

Answer:

Part A:  [tex]\displaystyle f(x) = \frac{19}{2}x^2 + 15x + C[/tex]

Part B:  [tex]\displaystyle f(x) = \frac{19}{2}x^2 + 15x - 5[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right  

Equality Properties

Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of Equality

Algebra I

Functions

Function Notation

Calculus

Differentiation

DerivativesDerivative Notation

Differential Equations

Integration

Integrals[Indefinite Integrals] Integration Constant C

Integration Rule [Reverse Power Rule]:                                                               [tex]\displaystyle \int {x^n} \, dx = \frac{x^{n + 1}}{n + 1} + C[/tex]

Integration Property [Multiplied Constant]:                                                         [tex]\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx[/tex]

Integration Property [Addition/Subtraction]:                                                       [tex]\displaystyle \int {[f(x) \pm g(x)]} \, dx = \int {f(x)} \, dx \pm \int {g(x)} \, dx[/tex]

Step-by-step explanation:

Step 1: Define

Identify

[tex]\displaystyle f'(x) = 19x + 15[/tex]

Step 2: Find Antiderivative

[Derivative] Integrate both sides:                                                                 [tex]\displaystyle \int {f'(x)} \, dx = \int {19x + 15} \, dx[/tex][Left Integral] Simplify:                                                                                   [tex]\displaystyle f(x) = \int {19x + 15} \, dx[/tex][Integral] Rewrite [Integration Property - Addition/Subtraction]:               [tex]\displaystyle f(x) = \int {19x} \, dx + \int {15} \, dx[/tex][Integrals] Rewrite [Integration Property - Multiplied Constant]:               [tex]\displaystyle f(x) = 19 \int {x} \, dx + 15 \int {} \, dx[/tex][Integrals] Integration Rule [Reverse Power Rule]:                                     [tex]\displaystyle f(x) = 19 \bigg( \frac{x^2}{2} \bigg) + 15x + C[/tex]Simplify:                                                                                                         [tex]\displaystyle f(x) = \frac{19}{2}x^2 + 15x + C[/tex]

Step 3: Find Particular Solution

Substitute in function value [Function f(x)]:                                                 [tex]\displaystyle 87 = \frac{19}{2}(-4)^2 + 15(-4) + C[/tex]Evaluate:                                                                                                         [tex]\displaystyle 87 = 92 + C[/tex]Solve:                                                                                                             [tex]\displaystyle C = -5[/tex]Substitute in C [General Solution]:                                                               [tex]\displaystyle f(x) = \frac{19}{2}x^2 + 15x - 5[/tex]

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Differential Equations

The student government snack shop sold 32 items this week. for each snack type, what percentage of all snacks sold where of that type

Answers

Answer:

0.02 Sorry If it isn't right.

Step-by-step explanation:

Help me find the equation of the line please need it now

Giving extra points


Correct answer only

Answers

Answer:

Step-by-step explanation:

If AB ⊥ CD, then [tex]m_{AB}[/tex] [tex]m_{CD}[/tex] = - 1

P( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] )

y - [tex]y_{1}[/tex] = m( x - [tex]x_{1}[/tex] )

~~~~~~~~~~~~~~~~

y = - 2x + 6 and P(3, 3) , m = - 2

Slope of ⊥ line is [tex]\frac{1}{2}[/tex]

y - 3 = [tex]\frac{1}{2}[/tex] ( x - 3 )

y = [tex]\frac{1}{2}[/tex] x + [tex]\frac{3}{2}[/tex]  or y = 0.5x + 1.5

$46 for 5 toys

$ / toy

Answers

It’s $9.2 for each toy

Answer:

$9.20 for 1 toy

Step-by-step explanation:

If it's $46 for 5 toys, we can divide both $46 and 5 to get $9.20 for 1 toy.

Can someone help me figure this out?

Answers

Answer:

Option A

Step-by-step explanation:

62 and x are consecutive supplementary  angles and so, x = 180 - 62 = 118

And this makes the lines parallel

6:what=1:3 what:30=8:5

Answers

Answer:

x = 18 and x = 36

Step-by-step explanation:

let unknown value is x

6:x = 1:3

product of means = product of extremes

6*3 = 1 *x

18 = x

x:30=8:5

product of means = product of extremes

5x=180

x=180/5

x=36

please help it’s due today

Answers

Answer:

-3

Step-by-step explanation:

1 - 4 = -3

2 - 1 = 1

(-3) / 1 = (-3)

Total sales is $55,000.
The commission is 3.5%.
Determine the commission .

Answers

Answer:

The commission is 1925

Step-by-step explanation:

This is because you are taking 3.5% of $55,000. After doing the percent you are left with $1925 which is the commission.

Hope I helped, Have a great day! :-)

The commission of the total sales of $55000 will be $1925.

What is the percentage?

A specific number in every hundred is what is meant by the percentage. The percentage symbol percent is used to denote a fraction with 100 as the denominator.

The percentage is just like the amount of that value but between 1 to 100 and it is very useful to predict for example if you say 678 then we have to know about the full number also but if you say 80% then it becomes clear.

The percentage is also called the indicating hundredths. Thus, 3% is two-hundredth, which means 3%=3/100=0.03.

Principle amount = $55000

Commision rate = 3.5%

3.5% of 55000 = (3.5 × 55000)/100

3.5% of 55000 = $1925

Hence the 3.5% commission of the amount of $55000 will be $1925.

For more about the percentage

brainly.com/question/13450942

#SPJ2

Which systems have infinite solutions? Check all that apply. y = 0.5x + 2.75 and 2y = x + 2.75 y = 0.5x + 2.75 and y – 0.5x = 2.75 y = 0.5x + 2.75 and 0.5x + y = 2.75 y = 0.5x + 2.75 and y = 0.5(x + 5.5) y = 0.5x + 2.75 and y = –2(–0.25x )+ 2.75

Answers

Answer:

Three solutions

Step-by-step explanation:

Infinite solutions means each and every point satisfies both the equations which means there would be a graph that overlaps the original graph.

So compare the equations with the equation

y = 0.5x + 2.75

each and every equation in this form has infinitely many solutions like

y = 0.5x + 2.75 and y - 0.5x = 2.75 these both equations are same. So they have infinitely many solutions as they overlap each other. Furthermore

y = 0.5x + 2.75 and y = 0.5(x + 5.5)

y = 0.5x + 2.75 and y = –2(–0.25x )+ 2.75

all these 4 equations are the same which is y = 0.5x + 2.75 so three systems have infinite solutions we can confirm this by using the desmos online graphing calculator just insert these equations into it and you will see all these equations are the same just like  for example

y = 2x and 2y = 4x

Answer: B, D, and E.

Step-by-step explanation: On Edge!!!!!!!!!!!!!!!

Pls can y’all tell me how many points will Tessa have scored in all ?

Answers

Answer: 48 points

Step-by-step explanation:

i hope this helps

24 x 2 =48 So the Answer is 48 :)

The ratio of shells to driftwood Gus found is shown on the ratio table. Complete the ratio table to make an equivalent
ratio.

Answers

Answer:

54

Step-by-step explanation:

It’s getting multiplied by 3

so if 6x3=18 then 18x3=54

:DDD

¿Cómo se resuelve este problema? Con explicacion por favor.
El problema esta en el archivo

Answers

Answer:

?

Step-by-step explanation:

Evaluate the expression when a = 4 and c = -4. -a +2c​

Answers

Answer:

-12

Step-by-step explanation:

Answer: -12
-(4)+2(-4)=-12
I hope this helps!!

hi guys its me addison ray shawty the baddest

Answers

Answer:

but she got away

Step-by-step explanation:

Answer:

Obviously, these lyrics are very heartfelt to me ;p

Step-by-step explanation:

Because I am Addison rae...

Michael received $275 more from relatives than friends. He received $4275 dollars in all, how much money did he receive from relatives and how much money did he receive from friends?

Answers

Answer:

4000 thousand from relatives and 275 from friends

Answer:

Michael received $2275 ftom relatives and $2000 from friends

Step-by-step explanation:

Let r represent the amount of money from relatives

Let f represent the amount of money from friends

f+r=4275

f+275=r

Use substitution, f+(f+275)=4275

2f+275=4275

2f=4000

f=2000

Substitute 2000 in for f

2000+275=r

2275=r

ANSWER:

Micheal received $2275 from relatives and $2000 from friends

In the table below, x represents miles traveled and y represents the cost to travel by train. Miles, x Cost, y 2 8.50 5 15.25 8 22.00 12 31.00 What is the y-intercept of this function? 2.25 4.00 6.50 17.13

Answers

Answer:

B. 4.00$

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Which is a different way to express 2(w + 3)?

Answers

Answer: 2w+6

Step-by-step explanation: Here you distribute. Simply multiply 2 and w which would get you 2w and 2 by 3 which would get you 6.

At a basketball game, a vender sold a combined total of 108 sodas and hot dogs. The number of sodas sold was three times the number of hot dogs sold. Find the number of sodas and the number of hot dogs sold.

Answers

Answer:

Hot dogs - 27, soda - 81

Step-by-step explanation:

Soda to Hot dog ratio = 3:1

If the total is 108, we can divide 108/4 ---> 27

now, multiply 3 and 1 by 27 and there you go!

edit: also if you don't know why I divided 108 by 4, its because you add together both sides of the ratio

3) The length of JM is 9x + 6 units, the length of JK is
5x and the length of KM is 3x +12 units. Find the
Length of JM
J
K
L
M
8

Answers

Answer:

[tex] JM = 60 units [/tex]

Step-by-step explanation:

Given:

[tex] JM = 9x + 6 [/tex]

[tex] JK = 5x [/tex]

[tex] KM = 3x + 12 [/tex]

[tex] JK + KM = JM [/tex] (segment addition postulate)

[tex] (5x) + (3x + 12) = (9x + 6) [/tex] (substitution)

Solve for x

[tex] 5x + 3x + 12 = 9x + 6 [/tex]

Collect like terms

[tex] 5x + 3x - 9x = -12 + 6 [/tex]

[tex] -x = -6 [/tex]

Divide both sides by -1

[tex] x = 6 [/tex]

[tex] JM = 9x + 6 [/tex]

Plug in the value of x

[tex] JM = 9(6) + 6 [/tex]

[tex] JM = 54 + 6 [/tex]

[tex] JM = 60 units [/tex]

A is plotted on a coordinate grid at (-3 1/2,1) choose the correct grid that best shows the location of the point

Answers

Hi there! Please provide the graphs in the question so that I can determine which is the right one.

Answer is c

Step-by-step explanation:

c

Does anybody know this??????

Answers

The correct answer is 196 or Option A.
The explanation is just as complicated as the question.
The correct answer is A. Have a nice day! :)

Sarah needs to find a plumbing company to fix the plumbing in her house. Pat’s Plumbing Company charges a flat rate of $650 to inspect the house plus $25.75 per hour of labor to fix the problem. Her friend Kristin tells her that AAA Plumbing will charge a fee on $675 to inspect the house and an hourly fee of $24.50 for labor. Kristin knows that AAA Plumbing will cost no more than Pat’s Plumbing Company. Which inequality correctly shows the relationship between the total cost of the two plumbing companies?

Answers

Answer:

An inequality correctly shows the relationship between the total cost of the two plumbing companies is [tex]675+24.5x \leq 650+25.75x[/tex]

Step-by-step explanation:

Pat’s Plumbing Company

Cost of inspecting house = $650

Cost of labor per hour = $25.75

Cost of labor in x hours = 25.75x

Total cost = 650+25.75x

AAA Plumbing

Cost of inspecting house = $675

Cost of labor per hour = $24.50

Cost of labor in x hours = 24.5x

Total cost = 675+24.5x

We are given that AAA Plumbing will cost no more than Pat’s Plumbing Company

[tex]675+24.5x \leq 650+25.75x[/tex]

Hence An inequality correctly shows the relationship between the total cost of the two plumbing companies is [tex]675+24.5x \leq 650+25.75x[/tex]

Answer:

carlo scored 65 out of 100 item in math. what percent of the test did he get correctly

factor completely 16a^3-50a^2+36a

Answers

Answer: (2a+4)(8a-9)

Step-by-step explanation:

16a^3-50a^2+36a                        16(36)=576

                                                                18,32( add to 50, multiply to 576)

16a^3+18a+32a+36

2a(8a-9)4(16-9)

(2a+4)(8a-9)

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