Mathematics College

Find all solutions to x^3+3x^2–19x+3=0​

Answers

Answer 1
I think this is the answer .
Find All Solutions To X^3+3x^219x+3=0
Answer 2

Answer:

x = 3

x = -3 + √ 10

x = -3 - √ 10

Step-by-step explanation:

I used a calculator

** I'm not sure if the x's are multiplication symbols or they're variables. (I'm assuming they're variables).

If it's wrong, I'm sorry!!

Related Questions

Can you please help?

Answers

Answer:

change in X is 12

Step-by-step explanation:

The new value of the x is 15 and it went from 3, so the change is 12

Yeah, I am pretty sure the change is 12.

The factor is 5, so you would multiply each side by 5 and the angles would stay the same

1•5=5 and 3•5=15.

You have your new value, 15, and your old value, 3. Knowing this, to find the difference you would subtract.

15-3=12

Which congruence theorem, if any, can be used to prove that the triangles are congruent?
SAS
SSS
HL
ASA
AAS
not enough info.
please help!!

Answers

Answer:

SAS

Step-by-step explanation:

The CEO of a company wants to determine if taking the employees to a company retreat would boost their morale. He decides to use a random number table to survey a simple random sample of 50 of the 250 employees. The employees are assigned the numbers 001–250. Refer to the given line from a random number table. Which numbers represent the first 3 members selected?

46254 58160 09695 38399 40400 32662

462, 545, 816
009, 040, 032
160, 096, 040
046, 025, 045

Answers

Answer:

B.

Step-by-step explanation:

edge2020

Pleaseee helpp don’t understand!!

Answers

Answer:

Step-by-step explanation: so

First you should have paired attention and I don’t understand either sorry!

PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer and Step-by-step explanation:

You got the triangle at front, half of 6 is 3, so then you do 4 times 3 divided by 2, which is 6.

There are 4 of those triangles, so 4 times 6 is 24.

Now, we got two rectangles on top. 5 times 12 is 60, and 60 + 60 is 120.

the bottom rectangle is 6 times 12, which is 72.

Now we add.

24 + 120 + 72 is 216

216 [tex]in^2[/tex] is the answer.

#teamtrees #PAW (Plant And Water)

If x = 10 find the value of 2x2 + 21

Answers

Answer:

221

Step-by-step explanation:

If x = 10,

2x² + 21 = 2(10)² + 21

             = 200 + 21

             = 221

Hope it helps :)

Please mark my answer as the brainliest

36 irrational or rational and why?

Answers

Rational number because for a number to be irrational it needs to have a decimal or be smaller than 1

Answer:

Rational

Step-by-step explanation:

First tip with numbers... All whole numbers are rational and all numbers, rational or irrational are real numbers. Rational numbers consist of whole numbers, integers, fractions, and so on... While irrational numbers are numbers that can't be simplified to a basic whole number or fraction like 36.

Pi (π) is an example of an irrational number.

36 is an example of a rational number.

Hope you get it now! :)

What is another way to write 3 x (4+5) = 27?
Pleas help

Answers

Answer:

Step-by-step explanation:

3 x (5+4) = 27

Hope that helps!

The another way to write 3 x (4+5) = 27, is 3 x (5+4) = 27.

What is  multiplication?

In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.

here, we have,

3 x (4+5) = 27

i.e. 3 x (5+4) = 27

Hence, The another way to write 3 x (4+5) = 27, is 3 x (5+4) = 27.

To learn more on multiplication click:

brainly.com/question/5992872

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Christopher is 5 less than 3 times as old as Tiara. Their ages together are 75 How old is Tiara?

Please help

Answers

C= 3x-5 T=x total:75
x+3x-5=75
x=20
20x3=60
60-5= 55

CHECK:
55+20=75

therefore Tiara is 20 years old

Answer:

Christopher= 20 and Tiara= 55

Step-by-step explanation:

Christopher has 20

Tiara has 55

if I am not wrong those should be the right ages they have to form 75.

tell me if I am wrong.

A person invested \$8,700$8,700 in an account growing at a rate allowing the money to double every 15 years. How long, to the nearest tenth of a year would it take for the value of the account to reach \$23,100$23,100?

Answers

Answer:21.13208319 =21.1

Answer: Probly 10 years or less

Step-by-step explanation:

i need help with this is pretty easy pls help me

Answers

Answer:

if its so easy do it yourself, btw thank you for showing me who you are now im telling ms german

Step-by-step explanation:

Write an expression equivalent to 2/3 (x-6)​

Answers

Answer:

2(1/3x-2)

Step-by-step explanation:

2/9 h = 8

h=

Pls tell me what h = !

Answers

Answer:

h=36

.......................

y= 22 + 2x + 3
What are the coordinates of the vertex of the given function?

Answers

Hope this helps can u mark me as branloest plz x

Two girls and three boys are entered in a school raffle that has two prizes. If a person is not allowed to win both prizes, what is the probability that two girls win?

Answers

Answer:

the probability of them both winning is 2/10 or 1/5

Step-by-step explanation:

(2/5)/2=2/10

2/10 is the answer

Or 1/5 like she said

Which of the following is true of a radius of a circle?



(1) Radius is the distance from the center to any point on the circle.
(2) A circle may have radii with different values.

(3) Radius is half the diameter in any circle


Select one:
Only (1) and (2)
Only (2) and (3)
Only (1) and (3)
All (1), (2) and (3)

Answers

The answer for this question is only one and three

the company claims that 52% (p=0.52) of the Reese's pieces are orange

Answers

Answer:

cool

Step-by-step explanation:

What the volume?????????

Answers

volume formula: length x width x height
left rectangular prism: 12 x 2 x 10 = 240
right rectangular prism: 12 x 8 x 2= 192
192 + 240 = 432
volume = 432 m^3


2. Sam's cat weighs 6 times as much as Larry's hamster. Together, they
weigh 28 pounds. How much does Sam's cat weigh? *
24 lbs
28 lbs
32 lbs

Answers

24 lbs yb ion. jiffy. jilllm

RECTA NUMERICA:
¿Qué puedes concluir acerca de los enteros en general mientras mas a la derecha de la recta se encuentran?

Answers

English? I don’t speck

Can someone please give me the answer I will be marking
u brilliant

Answers

Answer: - 1/5

Step-by-step explanation:

-1/3= -0.333333

1/2= 0.5

-1/5= -0.2

1/4= 0.25

When you compare them, you see that -0.2 is closer to 0. Since -0.2 is equivalent to -1/5, -1/5 is the answer.

Answer:

-1/5

Step-by-step explanation:

it just it

Vita has a piece of ribbon that is 5 meters long. She cuts the ribbon into pieces that are each 1/3 meter long. How many pieces does she cut?

Answers

Answer:

so this is clearly a division problem

the equation will be

5 ÷1/3     Keep switch flip

according to KSF the equation will change to this

5*3  = 15

So she will be able to cut 15 peices.

Thank you, Hope it helps

What is 73 divided by 21

Answers

73 divided by 21 is 3.4

Answer:

exact form: 73/21

decimal form: 3.476190

mixed number: 3 10/21

help
help
help
por favor
por favor
please

Answers

Answer:

cant help im sorry

Step-by-step explanation:

Answer:ok i don't know but you can copy and paste the question then search it in the search bar because i can guaranty that someone has asked that question before. and then all you got to do that and you can keep your points. hope this helps! ;)

Step-by-step explanation: Plz give brainliest.

help please asap. best answer gets brainliest.

Answers

Answer:

Step-by-step explanation:

4 is coefficient

x is variable

12 is constant

4-coefficient
X-const
12-variable

10) Which equation represents a function of x that is NOT linear? * A. y=4(x+3) B. y=4²+3x C. y=4x+3x² D. (4+x)/3

Answers

C

That is a quadratic equation because you have x to a second power. Linear equations have just x

The equation that  represents a function of x that is NOT linear should be option c.

Linear equation:

In the linear equation they have only x while on the other hand, in the quadratic equation they have x to the second power

So as per the given situation, the option a, option b, and option d represent the linear equation

Therefore, The equation that  represents a function of x that is NOT linear should be option c.

Learn more about an equation here: https://brainly.com/question/17833324

-5p + 3.5 = 8
WITH STEPS ON HOW YOU DID IT PLEASE

Answers

move 3.5 to the other side, which makes it negative
-5p=8-3.5
-5p=4.5
divide both sides by -5
p= -0.9
-5p + 3.5 = 8
-3.5 -3.5 subtract
-5p = 4.5
—— —— division
-5 -5

p = -1.1

20, 18, 21, 18, 22, 24, 18, 23, 23, 24 Explain the meeting of the interquartile range as it relates to the number of students in the kindergarten classes

Answers

The interquartile range of the data-set is of 5.5, which means that the middle 50% kindergarten classes has a number of students that differ by at most 5.5.

What are the median and the quartiles of a data-set?

The median of the data-set separates the bottom half from the upper half, that is, it is the 50th percentile.The first quartile(Q1) is the median of the first half of the data-set, and is also the 25th percentile.The third quartile(Q3) is the median of the second half of the data-set, and is also the 75th percentile.The interquartile range(IQR) represents the middle 50% of the distribution, and is given by Q3 - Q1.

For this problem, the ordered data-set is given by:

18, 18, 18, 20, 21, 22, 23, 23, 24, 24.

There are 10 elements, hence:

The first half is 18, 18, 18, 20, which has median (18 + 18)/2, hence Q1 = 18.The second half is 23, 23, 24, 24, which has median (23 + 24)/2, hence Q3 = 23.5.

Then the IQR is:

Q3 - Q1 = 23.5 - 18 = 5.5.

The IQR is of 5.5, which means that the middle 50% kindergarten classes has a number of students that differ by at most 5.5.

More can be learned about the interquartile range of a data-set at https://brainly.com/question/17083142

#SPJ1

I need help !! I’ll give brainliest for the correct answer.

Answers

Answer: -4 2/3
Hope this helps you!

One side of a rectangle is three times as long as another. If its area is 363 square centimeters, find its dimensions.

Shorter side:
Longer side:

Answers

9514 1404 393

Answer:

  11 cm by 33 cm

Step-by-step explanation:

You can solve this problem mentally as follows.

Consider the rectangle as 3 squares, side-by-side. Then the area of each of those squares is 363/3 = 121 cm^2. From your knowledge of the squares of numbers, you know that 121 = 11^2. So, the width of the rectangle is 11 cm, and the length is 3 times that, or 33 cm.

_____

Using variables, we can let w represent the width. Then 3w can represent the length, and the area is ...

  A = LW

  A = (3w)(w) = 3x^2 = 363

  w^2 = 363/3 = 121

  w = √121 = 11

  3w = 3·11 = 33

The width is 11 cm; the length is 33 cm.

Answer:

Shorter side: 11 cm

Longer side: 33 cm

First, write down what you know:

length=3*width, this can be written as 3w

area=363 sq cm

Now we know the formula for the area of a rectangle= length * width so we can substitute what we know into the formula. It looks like this:

        363 (area) = 3w (length) × w (width)

        [tex]363=w^2[/tex]

  divide both sides by 3 to get: 121 = [tex]w^2[/tex]

   take the square root of both sides to get: w=11 (square root of 121 is 11)

Now that we know what the width is, we can substitute that and find the length: 3w = 3 × 11=33

So length (longer side) is 33cm and width (shorter side) is 11cm.

*To check this, plug the numbers into the area formula: Area=33 × 11 = 363 sq cm.

Please mark brainiest if you can
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