Write the polynomial in standard form given the following zeros. Show all work.
(hint; the polynomials are of degree 3)

1. x = -3i, x=2



2. x = 3(multiplicity 2), x = -1



Please show work I need it please and thanks fir Hu ever answers it

Answers

Answer 1

Answer:

x³ - 2x² + 9x - 18x³ - 5x² + 3x + 9

Step-by-step explanation:

1.

Zero's

x = -3i, x = 2 and the third zero is x = 3i

Polynomial is:

(x + 3i)(x - 3i)(x - 2) =(x² - 9i²)(x - 2) =(x² + 9)(x - 2) =x³ - 2x² + 9x - 18

2.

Zeros:

x = 3, x = 3, x = -1

Polynomial is:

(x - 3)(x - 3)(x + 1) = (x² - 6x + 9)(x + 1) =x³ + x² - 6x² - 6x + 9x + 9 =x³ - 5x² + 3x + 9

Related Questions

Find the average rate of change between n = 2 and n = 4. (6 points) Question 10 options: 1) negative one fourth 2) one fourth 3) −4 4) 4

Answers

Answer:

 -4

Step-by-step explanation:

From the graph:

When n=2 , a^n =9

When n=4, a^n =1

The average rate of change between n=2 and n=4 is :

[tex]Rate= \frac{{{a_{2} -a_{4} } } }{2-4} \\=\frac{9-1}{-2} \\=-4\\[/tex]

The average rate of change is  -4

PLEASE MARK ME AS BRAINLIEST

Which expressions are equivalent?


I like your cut G!

Answers

Answer:

b

Step-by-step explanation:

answer : letter b
step by step explanation:

What’s 10x10+294892-2387482=?

Answers

Answer:

557,510

Step-by-step explanation:

haha big brain(jk calculater)

Answer:

557,510

Step-by-step explanation:

caculator

In the given figure, AC = BC, ∠DCA = ∠ECB and ∠DBC = ∠EAC. Prove that ΔDBC ≌ ΔEAC and DC = EC

Answers

Step-by-step explanation:

Here is your answer in the photo

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comment down

If there is any kind of suspicious mistake

then sorry

what is the number that is two more than one-tenth of one-fifth of one-tenth of 2,000​

Answers

Answer:

6

Step-by-step explanation:

2 + (1/10)(1/5)(1/10)2000 = 2 + (1/500)(2000) = 2 + 4 = 6

The number that is two more than one-tenth of one-fifth of one-tenth of 2,000​ will be 6.

What are the ratio and proportion?

The ratio is the division of two numbers while multiplication is an operation in mathematics to multiply two or more values to get a multiplied number.

Proportion is the relation of a variable with another. It could be direct or inverse.

The one-tenth of x = (1/10)x similarly

one-tenth of one-fifth of one-tenth = (1/10)(1/5)(1/10)

So  one-tenth of one-fifth of one-tenth of 2,000​ =  (1/10)(1/5)(1/10) ×2000

⇒ 2000/500 = 4 Now the question is saying 2 more hence

4 + 2 = 6 hence six will be the correct answer.

For more information about ratio and proportion

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A room is 15 feet long and 12 feet wide. What are the length and width of the room in yards?

Answers

Answer:

15ft = 5 yards

12ft = 4 yards

25 points. Which problem will graph as shown?

A) 3x - 5 ≥ -14
B) 3x - 5 ≤ -14
C) 3x - 5 > -14
D) 3x - 5 < -14

Answers

Answer:

D

Step-by-step explanation:

We can work backwards.

First, notice that we have an open circle. So, we do not have "or equal to." So, we can ignore A and B.

Our final answer is all values less than -3. So:

[tex]x<-3[/tex]

We can multiply both sides by 3:

[tex]3x<-9[/tex]

And then subtract 5 from both sides:

[tex]3x-5<-14[/tex]

So, the answer that matches this will be D.

Instead of working backwards, you can also just solve each inequality. Since we have an open circle, we only need to solve C and D. If we solve C, we get x > -3, and if we solve D, we get x < -3 (as desired). So, D matches the graph shown.

I need help on this question

Answers

It is a right agn have a good day

What is the product of radical 6 and 10 radical 12 in simplest radical form

Answers

Answer: 60√2


Explanation: We can combine the 6 and 12 because they are both under the radical and get 10√72.

We can simplify the √72 to √(36*2), which becomes 6√2.

We can then multiply the 6 and 10 (both are outside the radical) to get 60√2.

If you check both my answer and the problem in the question, you get approximately 84.9.

10-x=-2x what is it ???

Answers

Answer:

x = - 10

Step-by-step explanation:

Given

10 - x = - 2x ( add 2x to both sides )

10 + x = 0 ( subtract 10 from both sides )

x = - 10

which of the following shows a table of equivalent ratios?

Answers

A.
Every foot gets multiplied by 12 to get the inches making it equivalent.

I’ll give you a huge virtual bear hug if you answer this right

The polygons are similar. Find the values of
the variables. Write an equation and solve,
showing ALL the work.

Answers

Answer:

x = 12, y = 8

Step-by-step explanation:

Since we know that the two triangles are similar that means we can find the ratio. The larger triangle is two times larger, we can find that out using 7/3.5 = 2. That means x + 4 = 2y and 3y = 2x. We can solve for y using substitution. We can double the first equation. 2x + 8 = 4y. We know that 2x = 3y so we can plug that in. 3y + 8 = 4y. Solving for y, gets us y = 8. Now we can plug that into any of the prior equations. I'll use 3y = 2x. 3(8) = 2x. 24 = 2x. Divide both sides by 2. x = 12.

at point (0,2) can be reflected across the x-axis PLEASE HELP 50 POINTS​ true pr false​

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

When a point P(x, y) is reflected across the x-axis, all we need to do is to reverse the sign value of the y-coordinate of any given point while the x-value remains the same.

Thus,  

The rule to reflect over the x-axis is:  

P(x, y) → P'(x, -y)

In our case, the point, let's say A(0, 2), is reflected across the x-axis. Thus, the coordinates of A' will be:

P(x, y) → P'(x, -y)

A(0, 2) → A'(0, -2)

So, YES! point A(0,2) can be reflected across the x-axis and the coordinates of A' will be: A'(0, -2).

NEED HELP ASAP PLEASE
[tex](4 {c}^{2} - + 15c + 18) \div (c + 2)[/tex]

Answers

4c-23+64/c+2
I hope this help

solve a variable source

x-7=15

Answers

Answer:

x = 22

Step-by-step explanation:

x = 7 + 15

x = 22

Answer:

x = 22

Step-by-step explanation:

1x - 7 = 15

1x = 15 + 7

1x = 22 (divide both sides by the first number/1 to get x)

1x/1 = 22/1

x = 22

Have a great day!!

x varies inversely as y/z.x=27 when y=9 and z=2​

Answers

Answer:

y/z.x= 27

x=27.2/9

x=6

answer of it

earth's equator has a diamter of 7926.4 miles. which equation can be used to find the circumference of earth at the equator?

Answers

Answer:

To find the circumference you need to use C= 2πr but since you started with the diameter you need to divide it by 2 and you will get 3963.2. After you get the radius use the formula C= 2πr and you will get 24901.52

The equation would be written as 2 x π x 3963.2 = 24901.52

round off 2409725 to nearest 10​

Answers

Answer:

Hey!

Step-by-step explanation:

Your answer is 2409725.0

Best of luck ♥

Answer:

2409730

Step-by-step explanation:

what is -4m^3/10n ÷ 2m^2/5n​

Answers

Answer:

-m[tex]n^{2}[/tex]

Step-by-step explanation:

What is the coefficient in the expression 3n + 1

Answers

The coefficient is 3

Millie has a box of crayons. 30 of the crayons are red, 14 are green, and 16 are
blue. Millie randomly selects a crayon from the box, records the color and then
replaces the crayon in the box. If she selects a crayon 30 times, how many
times do you predict she will select a blue crayon?
6
07
0 10
08

Answers

Answer: i’m really not sure about this one but i think eight

Step-by-step explanation: if you calculate the probability of drawing a blue crayon you should get 16/60. if you’re drawing thirty times then multiply 16/60 by thirty and you get eight. sorry if this is incorrect hope this helped :D

The time,
T
(seconds), it takes for a pot of water to boil is proportional to the amount,
A
(litres), of water.
It takes 180 seconds to boil 2.8 litres of water.
Work out how long it takes (to the nearest second) to boil 2.2 litres.

Answers

Answer:

The time it takes to boil 2.2 litres of water is approximately 141 seconds

Step-by-step explanation:

The given parameters are;

The relationship of the variables, T and A is a proportional, therefore, we have;

T ∝ A, or T/A = k = Constant of proportionality

The time it takes to boil 2.8 liters of water = 180 seconds

∴ When A = 2.8 litres, T = 180 seconds, from which we have;

k = T/A = 180 s/(2.8 L) = 450/7 s/L

k = 450/7 s/L

When A = 2.2 litres, we have;

T/A = k

∴ T = k × A

Plugging in the value for both 'k', and 'A' when A = 2.2 litres, gives;

T = k × A = 450/7 s/L × 2.2 L = 990/7 s = 141.[tex]\overline{428571}[/tex] s

The time it takes to boil 2.2 litres of water, given a direct proportionality relation is, T = 141.[tex]\overline{428571}[/tex] seconds ≈ 141 seconds given to the nearest second.

Question 4 A triangle has two sides that are 8 cm and 13 cm. What could be the length of the triangle's third side? Select three that apply. А 5 cm B 10 cm С 17 cm D 20 cm E 21 cm F 24 cm​

Answers

know what is the third side length

the difference between the 2 other sides <  the greatest side of triangle < the sum of 2 other sides

so here the answers here could be ( 10- 17 - 20)

10-8 < 13 <  10+8  

13-8 < 17 < 13+8

13-8 < 20 < 13+8

Simplify 12 + (-4) - 2/5J -4/5j +5

Answers

Answer:

13 - 6j/5

Step-by-step explanation:

After simplification of the given equation, the value obtained is equal to (13 - 6j)/5.

What is Simplification?

A phrase must be simplified and made shorter using a variety of methods. The steps required to decrease something are carried out according to a specified order known as BODMAS.

Make a fraction simpler by reducing it to the base form. If both the numerator and denominator of a fraction only include the integer, the fraction is considered to be in its basic form.

As per the data given in the question,

12 + (-4) -2/5j - 4/5j + 5

12 - 4 + 5 - 2/5j - 4/5j

13 - (2 - 4)j/5

= (13 - 6j)/5

To know more about Simplification:

https://brainly.com/question/2804192

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In which number does the digit 3 have a value that is 10 times as great as the value of the digit 3 in 143,728?

Answers

Complete question :

In which number does the digit 3 have a value that is 10 times as great as the value of the digit 3 in 143,728? 137,982 142,398 292,389 392,097

Answer:

137,982

Step-by-step explanation:

The value of digit 3 in 143, 728

3 in 143,728 is in the 1000 thousand place, hence, digit 3 has a value of :

3 * 1000 = 3000

Therefore, 10 times the value of digit 3 will be :

3000 * 10 = 30000

Feom the options given, we obtain the option where 3 has a value of 30000 if the number is expressed in expanded form:

The answer is 137,982

3 here is in the 10 thousand place = 3 * 10,000 =. 30,000

In a city, there are 8 public and 3 private swimming pools. On weekends, 5 of the pools are open.
Brendan says that the ratio of pools open on weekends to the total number of pools is 5:8. Cyndi says the ratio of
pools open on weekends to the total number of pools is 5:16.
*
Is either student correct? Use the drop-down menus to complete the statements.
est
ugh cle
st call
IS
There are Choose... pools open on the weekend out of the Choose... total pools. Choose...
correct. The ratio is Choose... to Choose... v
ou are
first !
olete
Will Be
suger

Answers

36 to air plain crashes

d

d

d

d

Select all the expressions that are equivalent to 16x - 12 - 24x + 4
1) 4 + 16x - 12(1 + 2x)
2) 40x - 16
3) 16x - 24x - 4 + 12
4) -8x - 8

Answers

Answer:

(1) and (4)

Step-by-step explanation:

4 + 16x - 12(1 + 2x) = 4 + 16x - 12 - 24x

4 + 16x - 12 - 24x = 16x - 12 - 24x + 4

- 24x + 16x = -8x

- 12 + 4 = -8

Which creates -8x - 8

In a week tracy earns 12.45$ less than twice the amount kayla earns tracy earns 102.45$ how much does kayla earn

Answers

Amount Kayla earns = x
So Tracy earn =2x-12.45

2x - 12.45 = 102.45
2x=114.9
x =57.45

so Kayla earns = $57.45

PLEASE HELP ME ASAP?!?(2questions) 60POINTS+BRAINLIEST
Find the missing side lengths using your notes on the 45-45-90 and 30-60-90 special triangles.

Answers

It says that there was an error with my answer, but I don't know what, so I screenshotted what I typed and attached them as 4 images below:

plzzz help me with and i will give u a brainliest

Answers

THE FIRST ANSWER is the answer
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