Perform the operation and write the result in the standard form.
(1 + 9i)(1 - 9i)​

Answers

Answer 1

Answer:

10-18i

Step-by-step explanation:

1(1-9i)+9(1-9i)

1-9i+9-9i

1+9-9i-9i

10-18i

Answer 2
82+0i

Explanation:
(1+9i)(1-9i)
=(1-9i+9i-81i^2)
(Remember i^2 is -1)
=(1+81)
=82
In standard form, its written as 82+0i

Related Questions

The Sugar Sweet Company will choose from two companies to transport its sugar to market. The first company charges $5500 to rent trucks plus an additional fee of $200.25 for each ton of sugar. The second company charges $5041 to rent trucks plus an additional fee of $225.75 for each ton of sugar.

Answers

The computation shows that the tons of sugar when they'll have same price is 18 tons.

How to compute the value?

The first company charges $5500 to rent trucks plus an additional fee of $200.25. Thai will be:

= 5500 + (200.25 × s)

= 5500 + 200.25s

where s = tons of sugar

The second company charges $5041 to rent trucks plus an additional fee of $225.75 for each ton of sugar. This will be:

5041 + 225.75s

Then we will equate both of them. This will be:

5500 + 200.25s = 5041 + 225.75s

5500 - 5041 = 225.75d - 200.25s

459 = 25.5s

s = 459/25.5

s = 18

At 18 tons, they'll have same price.

Learn more about computations on:

brainly.com/question/4658834

#SPJ1

The Sugar Sweet Company will choose from two companies to transport its sugar to market. The first company charges $5500 to rent trucks plus an additional fee of $200.25 for each ton of sugar. The second company charges $5041 to rent trucks plus an additional fee of $225.75 for each ton of sugar. For want mount if sugar do they charge the same price.

A dressmaker needs to cut 18-inch pieces of ribbon from rolls of ribbon that are 3 feet in length. How many 18-inch pieces can the dressmaker cut from 15 of these rolls of ribbon?

Answers

You have 10 rolls and each is 6 feet so therefore you have 60 feet of ribbon. Convert that to inches you need to multiply by 12 so 60 x 12 = 720 inches of ribbon.

If the dress maker needs 18 inch pieces you divide to 720 by 18.
720 divided by 18 will give you 40 pieces.

Final answer:

The dressmaker will get 40, 18-inch pieces of ribbon from 10, 6 foot rolls.

The points ​(​-2,​-1) and ​(6​,​3) are the endpoints of the diameter of a circle. Find the length of the radius of the circle.

Answers

Using the distance formula, the diameter has a length of

[tex]\sqrt{(-2-6)^2 + (-1-3)^2}=4\sqrt{5}[/tex]

The radius is half the diameter, so the answer is

[tex]\frac{4\sqrt{5}}{2}=\boxed{2\sqrt{5}}[/tex]

Approximate √10 to the nearest tenth

Answers

√10 = 3.1622….. to the nearest tenth it would be 3.2

if 2/5 kilogram of soil fills 1/3 of a container,can1 a kilogram of soil fit in the container? Explain or show your reasoning

Answers

Answer:

Yes

Step-by-step explanation:

1 kilogram of soil will fill:

1/3 ÷ 2/5 = 5/6 (of a container)

Because 5/6 < 1

=> 1 kilogram of soil will fit in the container

Whats the constant term for y=3x + 5


1. 3
2. 5

Answers

i answered this one already on your other post for it

3 is the constant/slope

5 is the y intercept

Find the rate of change of f(x) = x² - 2x + 3 on [-1,2].

Answers

Answer:

-1.

Step-by-step explanation:

Rate of change = [ f(2) - f(-1)] / [2 - (-1)]

                          = [(2)^2 - 2(2) + 3)  - ((-1)^2  - 2(-1) + 3] / 3

                           = ( 3 - 6)/3

                            = -1.

f(x) = 5x-7, then what is the solution to f(x) = 4?
(1) 13
(3) -87
(2)-7
(4) 2}
I need some work or explanation please ASAP

Answers

The solution to  function f(x) = 4 is 2 1/5.

Given that, f(x) = 5x - 7

Now, function  f(x) = 4 implies that

i.e. 5x - 7 = 4

i.e. 5x = 4 + 7

i.e. 5x = 11

i.e. x = 11/5

x =2 1/5

So, option (4) is correct. ​​​​​

The core concept of mathematics' calculus is functions. The unique varieties of relations are the functions. In mathematics, a function is represented as a rule that produces a distinct result for each input x. In mathematics, a function is indicated by a mapping or transformation. Typically, these functions are identified by letters like f, g, and h. The collection of all the values that the function may input while it is defined is known as the domain. The entire set of values that the function's output can produce is referred to as the range. The set of values that could be a function's outputs is known as the co-domain.

To learn more about  function visit:https://brainly.com/question/12431044

#SPJ1

The function is f(x)= 5x-7. The solution to f(x)=4 is when x is 11/5.

Given that,

The function is f(x)= 5x-7

A function is nothing but in mathematics, a function is a unique arrangement of the inputs (also referred to as the domain) and their outputs (sometimes referred to as the codomain),where there is exactly one output for every input, and the output can be connected to its input.

f(x), where x is the input, is a common way to refer to a function. A function represented as y = f(x).

We have to find the solution to f(x)=4

Take 5x-7 in the place of f(x) because they are equal.

5x-7=4

5x=4+7

5x=11

x=11/5

Therefore, the solution x value is 11/5.

To learn more about function visit: https://brainly.com/question/12431044

#SPJ1

f(x) = cube root 2x
g(x) = 2x + 1
Find (f/g) (X) Include any restrictions on the domain

Answers

Answer:

B.

Step-by-step explanation:

any arithmetic operation with functions just means to do this operation with the functional expressions.

f/g is really just the expression of f divided by the expression of g.

so, this results in a fraction with the denominator (bottom part) = 2x + 1

as you know, a division by 0 is not a valid operation, and therefore we have to forbid any value for x that would create a 0 in the denominator.

so, for what x do we get

2x + 1 = 0

2x = -1

x = -1/2

therefore, we have to exclude x = -1/2.

solve the equation for x (3x/4)+2=4x-1

Answers

Answer:

Step-by-step explanation:

Tom and Louise share £40 in the ratio 1 : 3 work out how much money Tom gets

Answers

Answer:

5

Step-by-step explanation:

because I give him and the answer is incorrect I know but I gave him believe me

A small publishing company is planning to publish a new book. Let C be the total cost of publishing the book (in dollars). Let N be the number of copies of the book produced. For the first printing, the company can produce up to 200 copies of the book. Suppose that C= 10/N + 800 gives C as a function of N during the first printing. Identify the correct description of the values in both the domain and range of the function. Then, for each, choose the most appropriate set of values.

Answers

The domain is the set of all integers lying in the interval [0 , 200] and range is the set of all reals lying in the interval [800 , 2800].

What is a function?

A function defined from A to B, associates each and every element of the set A tò the element of set B. In mathematics, it is represented using the symbol, f : A -> B. Here, set A is called the domain of the function while set B is called the range of a function.

Calculation of domain and range of a given function

The domain is the set of all possible values of x.  According to this question, the domain of N lies in the interval [0 , 200] i.e. all the integers lying in the given interval. Only integers are chosen because the number of books cannot be in fraction.

The range is the set of possible costs and lies in the interval [800 , 2800] i.e. all the reals lying in the given interval.

Hence, the domain is the set of all integers lying in the interval [0 , 200] and range is the set of all reals lying in the interval [800 , 2800].

To learn more about the function, visit the link given below:

https://brainly.com/question/11624077

#SPJ9

Approximate when the function y = -x² + 3x + 4 is negative.
-2
8
9
0 x < -1
2
0 -1 0 x>4
x²+3x+4
6 x
27
4

Answers

The function y = -x² + 3x + 4 is negative when - 1 > x > 4.

A function is made up of three parts: a set of inputs, a set of outputs, and a rule that links the components of the input set to the components of the output set so that each input is paired with exactly one output.

Consider the function,

y = - x² + 3x + 4

For the function to be negative y < 0.

Therefore,

- x² + 3x + 4 < 0

- ( x² - 3x - 4 ) < 0

- (  x² - 4x + x - 4 ) < 0

- [ x ( x - 4 ) + 1 ( x - 4 ) ] < 0

- ( x + 1 ) ( x - 4 ) < 0

Multiplying by -1 on each side of the inequality.

- ( x + 1 ) ( x - 4 )(-1) > 0( - 1 )

( x + 1 ) ( x - 4 ) > 0

x < - 1 or x > 4

Therefore, the function is negative when - 1 > x > 4.

Learn more about function here:

https://brainly.com/question/11624077

#SPJ9

Scientific notation question HW

Answers

Answer:

the scientific notation of 83300 is 8.33*10^4

What is an equation of the line that passes through the points (3, 6) and (-1, -6)?

Answers

point slope intercept form:y-6=3(x-3)
slope intercept form: y= 3x-3

Find the values of x and y. Write all radicals in simplest form.

Answers

Answer:

For the 60-30-90 degree triangle:

x=12

y=[tex]12\sqrt{3}[/tex]

For the 30-60-90 degree triangle:

x=16

y=[tex]8\sqrt{3}[/tex]

For the 45-45-90 degree triangle:

x=7

y=[tex]7\sqrt{2}[/tex]

Step-by-step explanation:

For 30-60-90 triangles, the side opposite the 30 degree angle is x, while the side opposite the hypotenuse is 2x, while the side opposite the 60 degree angle is [tex]x\sqrt{3}[/tex].

For 45-45-90 triangles, the sides opposite the 45 degree angles are x, while the hypotenuse is [tex]x\sqrt{2}[/tex].

(4-3m)8 distributive property

Answers

(4-3m).8
(-3+4).8

Re-order terms so constants are on the left
(-3m + 4) - 8
8(-3m + 4)


Distribute
8(-3m + 4)
-24m + 32

Solution
-24m + 32

Help 50 points please show your work

Answers

Answer: 16 ft

Step-by-step explanation: The ratio given is 2ft=1in, therefore 2ft/1in=1. Multiplying anything by 1 equals itself, so multiplying 8in*(2ft/1in)=16ft where the number of inches cancel out.

Please answer this screenshot please 10 points good idea yes.

Answers

Answer:

Yes it is a function

Step-by-step explanation:

There is a relationship between x and y. It is not linear but quadratic

Answer:

yes it is a function

Step-by-step explanation:

that is the answer bc I said I was

3y^3+20y^2=7y

Solve the polynomial by factoring. The answer is y(3y-1)(y+7)
I can't seem to figure out how they got the answer. I need an explanation before my test tomorrow.

Answers

Answer:

Hello,

Step-by-step explanation:

[tex]3y^3+20y^2-7y=y(3y^2+20y-7)\\\\=y(3y^2+21y-y-7)\\\\=y(3y(y+7)-(y+7))\\\\=y(y+7)(3y-1)\\[/tex]

Suppose the odds are 38 to 1 that someone will lie to you at least once in the next seven days. State this as a probability.

Answers

Answer:

38/39

Step-by-step explanation:

P=s/(s+f)

P=38/(38+1)

P=38/39

(Adding and Subtracting with Scientific Notation MC)

Simplify (9 x 10−13) − (6.3 x 10−15).

8.937 x 10−15
8.937 x 10−13
2.7 x 10−15
2.7 x 10−13

Answers

Answer:

C) 2.7 x 10-15

Step-by-step explanation:

Sorry if I'm wrong. hope you're having a great day

The computation shows that the value of (9 x 10−13) − (6.3 x 10−15) is C. 2.7 x 10−15

How to compute the value?

Simplify (9 x 10−13) − (6.3 x 10−15).

This will be solved as follows. It should be noted that one just have to subtract the values.rhat are given based on the information above.

Therefore, (9 x 10−13) − (6.3 x 10−15).

= 2.7 x 10−15

In conclusion, the correct option is C.

Learn more about computations on:

brainly.com/question/4658834

#SPJ1

What is the value of −7 + |−25|?

Answers

Step-by-step explanation:

the absolute value function always delivers the positive value of the internal expression, no matter if it is actually negative or already positive.

so,

|-25| = 25

therefore,

-7 + 25 = 18

Which expression simplifies to 2√/15? A. V17 OB. √19 OC √30 OD. √60

please help just have 3 minutes left​

Answers

Answer:

Step-by-step explanation:

Urgent (I added 50 points)
The diagram below is drawn on a one-centimetre square grid


Work out the area of the shaded triangle:

Answers

The area of the shaded triangle will be 11.5 square centimeters.

What is the area of the shaded region?

It deals with the size of geometry, region, and density of the different forms both 2D and 3D.

The area of the square will be given as,

A₁ = 5 x 5

A₁ = 25

The area of the triangles will be given as,

A₂ = 1/2 (1 x 5 + 4 x 3 + 2 x 5)

A₂ = 1/2 (27)

A₂ = 27/2

Then the area of the shaded triangle will be given as,

A = A₁ - A₂

A = 25 - 27/2

A = (50 - 27) / 2

A = 23/2

A = 11.5 square cm

The area of the shaded triangle will be 11.5 square centimeters.

More about the area link is given below.

https://brainly.com/question/27683633

#SPJ1

Answer:

In the graph, excluding the shaded triangle, there are three right angled triangles surrounding the shaded triangle in a square

Area of shaded triangle = area of square - area of three triangles

[tex]{ \sf{area = (5 \times 5) - ( \frac{1}{2} \times 4 \times 3) - ( \frac{1}{2 } \times 5 \times 2) - ( \frac{1}{2} \times 5 \times 1)}} \\ \\ { \sf{area = 25 - 6 - 5 - 2.5}} \\ \\ { \sf{area = 11.5 \: {cm}^{2} }}[/tex]

In the last year school board election Mrs Jackson received 60.1% of the votes write three equivalent fractions for 60.1% with denominator of 1000 and 100and 10

Answers

601/10=60.1%
601/100= 0.601
601/1000= 0.0601

QUESTION 94
Percentages
In January 2021, a study by the Bureau of Transportation statistics found that 12 out of 35 flights arrived
on time. What percent of the flights were on time?
Choose one 4 points
O 72%
O 34.3%
O 34%
O 27%

Answers

Answer: 34.3%

Step-by-step explanation:

[tex]Given:\ 12/35\ flights\ on\ time[/tex]

To find the percent, divide then multiply by 100:

[tex]\frac{12}{35} = 0.343\times100=\large\boxed{34.3}[/tex]

x - y = 7
x - y = -1
Solve the system of equations by graphing

Answers

Answer:

There is no solution.  The lines are parallel.  They will never intercept.  There will be no point that is on both lines.

Step-by-step explanation:

The length of a rectangle is twice its width.
If the perimeter of the rectangle is 36 m, find its area

Answers

Answer:

length= 12 width=6

Step-by-step explanation:

when adding perimeter you add the length and width twice each so divide 36 by two and get 18

if the length is twice the width then you could make the equation w+2w=18

by adding like terms you get 3w=18

to get n by itself you divide 18 by 3 and get w=6

if the width is 6 and the length is twice that then the length is 12

Answer:

A=72

Step-by-step explanation:

The length of a rectangle is TWICE it's width meaning 2 times. (Note that L= length, W=width, and A=Area)

L=2w

4w+2w=36

6w=36 <- ( 6 is width)

then

2x6=12

Then

12x6=72

So the area of the rectangle is 72.

Hope that makes sense!

MAT is a tangent to circle O. Use the sketch and prove the theorem that states that MAS=D​

Answers

Answer:

i don't know how to attach the file

Other Questions
a network of manufacturers and service providers that work together to convert and move goods from the raw materials stage through to the end user is the definition of. When the number of miles driven equals 0, why is the cost per month not equal to 0? Why does the graph have a positive slope? It is a new year in Germany for little Isaac, who is eight years old. January 1939 is not filled with promise like most new years, and even Isaac can feel the change in the air. His parents have told him about the damage done to their synagogue that terrible night in November. The government said it was Jews who caused the problem. Isaac does not understand why Jews would damage their own synagogue. What big change will Isaac MOST likely face this month?A. Isaac will be deported to Poland or Austria.B. Isaac will no longer go to school with his friends.C. Isaac will be separated from his mother and father.D. Isaac will be made to join the Hitler Youth Party. How is the nuclear membrane like the cell membrane? work out the surface area of the prism for a fee, isabella can open a pizza hut restaurant in her hometown of sicily. the parent company has agreed that she can use the company name and it will also provide her with marketing and operational support. isabella is in the process of . An 80.8kg man is standing on a frictionless ice surface when he throws a 2.3kg book at 11.8m/s. with what velocity does the man move across the ice? identify and explain disastrous effects of fires on emotional wellbeing What is the subject of Phillis Wheatley's poem "On Being Brought from Africa to America"?Here is the text:'Twas mercy brought me from my Pagan land,Taught my benighted soul to understandThat there's a God, that there's a Saviour too:Once I redemption neither sought nor knew.Some view our sable race with scornful eye,"Their colour is a diabolic die."Remember, Christians, Negros, black as Cain,May be refin'd, and join th' angelic train.the role of angels in human lifethe poet's gratitude for Christian salvationpeople who mistreat Africansthe poet's anger toward those who enslaved her which type of transformation preserves the symmetry of an even function f(x) but does not preserve the symmetry of an odd function g(x)?vertical translationhorizontal translationreflection over the x-axisreflection over the y-axis Who has the right to visit and inspect any establishment that sells alcoholic beverages? Read the example sentence, and study the chart of suffixes. The renumeration of funds was ordered by the court because the judge ruled that the company had overcharged the client.Suffix Definition-tion the action of-ize to make-ary related to-ate becomeBased on the table, what is the meaning of renumeration? becoming wealthyto make more moneyrelated to moneythe act of paying back a charity benefit is attended by 25 people and three gift certificates are given away as door prizes: one gift certificate is in the amount of $100, the second is worth $25 and the third is worth $10. assuming that no person receives more than one prize, how many different ways can the three gift certificates be awarded? The gravitational force between two objects is 3600 N.What will be the gravitationalforce between the objects themass of each object is reduced to one-third of its original mass?O 400 NO 1200 NO 10,800 NO 32,400 N How does the law of conservation apply to nutrient cycles? What is the intended audience for President John F. Kennedy's inauguraladdress?In the long history of the world, only a few generations have beengranted the role of defending freedom in its hour of maximum danger. Ido not shrink from this responsibility-I welcome it. I do not believethat any of us would exchange places with any other people or anyother generation. The energy, the faith, the devotion which we bring tothis endeavor will light our country and all who serve it-and the glowfrom that fire can truly light the world.And so, my fellow Americans: ask not what your country can do for you-ask what you can do for your country.-President John F. Kennedy, Inaugural Address, 1961 17 year old girl comes to the office due to knee pain. she first noticed a dull, achy pain in her left knee a week ago after soccer practice uworld Which point of view does the narrator use in the passage? You open your eyes. There's light in the compartment, blue and cold; and the train is stationary. Liz, Elizabeth Six, is kneeling on the bunk, leaning across to the window blind. Her hair brushes your face. You push yourself up. She says, "Look, Molly. Look. . . !" solve pls brainliest Giving brainliest!!! Pls answer Is a rocket in the process of launching Balanced or Unbalanced force?