Solve the equation 3x²- 18x + 7=0 using the quadratic formula.​

Answers

Answer 1

18² - 4 * 3 * 7 =240

x1 = (-b-root of 240)/2a = ............

x2 =(-b + root of 240)/2a = ........


Related Questions

Which expression is equivalent to 8a + 20?
4(2a + 20)
4(2a + 5)
4(4a + 16)
4(4a + 5)

Answers

Answer:

4(2a+5)

Step-by-step explanation:

4 times 2a= 8a

4 times 5= 20

A triangle can have sides of 12, 19, and 30.
True or false

Answers

Answer:

True

Step-by-step explanation:

According to the Triangle Inequality, the sum of any two sides of a triangle has to be greater than the third side. 12+19 = 31 which is more than 30 so a triangle can have sides of 12, 19 and 30.

Answer:

false

Step-by-step explanation:

ratios that are equivalent to 40:28

Answers

Answer:

10:7

Step-by-step explanation:

12 points? Please ASAP NEED HELPPPPP

Answers

Answer:

she is correct because if you reflect that over the Y axis

What is the value of the expression 2^2x2^-2x3^4x3^-4

Answers

Answer:

1

Step-by-step explanation:

the positive and negative exponents cancel out

W
What is the prime factorization of 72? (1 point)
O 1x2x4x9
O 22x32
0 22x33
O 2x32

Answers

Answer:

2³×3²

Step-by-step explanation;

TO FIND A PRIME FACTORIZATION OF A NUMBER YOU FIRST NEED TO KNOW PRIME NUMBERS ARE;

Prime Numbers are numbers which which have only two factors the number itself and one

Examples of Prime Numbers are;

2,3,5,7,11,13,17,19,23,29,etc

To Find The Prime Factorization Of The Number 72 you'll need to follow this;

72=2×36(we have the number 36 because when it's multiplied by 2 the product is 72 and 36 is not a prime number so it has to be broken down but since 2 is a prime number you leave it as it is)

72=2×2×18(we have 2×18 because because it's give us the product of 36 when multiplied so now that we have a second prime number(2) we will have to continue to break down the number 18)

72=2×2×2×9( We again have two another 2 and 9 here because when multiplied by each other its product is 18 so as we can see 9 is not a prime number so we have to break it down but the 2 is a prime number so we let it be)

72=2×2×2×3×3( As we can see here, 3 and 3 is a prime number so nothing happens to it so we have broken the non-prime numbers down so now we have all the numbers as Prime Numbers)

So; 72=2×2×2×3×3

So we are going to count the twos and threes so as you can see we have three twos and we have two threes. Which makes our final answer;

2³×3²

So The Prime Factorization of 72 is; 2³×3²

Find the value of x.


Answers

Answer:

x = 19

Step-by-step explanation:

The sum of both angles will be equal to a supplementary angle. A supplementary angle is when two angles add up to be 180°. Write an equation and solve for x.

3x + 5 + 7x - 15 = 180

~Combine like terms

10x - 10 = 180

~Add 10 to both sides

10x = 190

~Divide 10 to both sides

x = 19

Best of Luck!

Answer:

sorry i didn't find the value of x, but i did find the value of y. if that helps.

Step-by-step explanation:

y=a+5

Cami goes scuba diving. She descends 18 feet in 3 minutes. Which expressions represent the average rate at which Cami’s position changes in feet per minute?

Answers

Answer:

6 ft/min

Step-by-step explanation:

Theres a neat trick to note; whenever you say per think of it as a fancy word for divide, because the label is always gonna be a/b (a per b)

Therefore,

the rate of feet per minute will be the feet divided by the minutes;

18 feet in 3 minutes = 18/3 ft/min

Therefore the rate is 6 feet per minute.

IF you need an explanation on what average rate implies:

Note; the word average is not prudent to answer as its extraneous, however if there was more data like "Cami descends 18 ft in 3 min and Nami descends 9 ft in 3 minutes; whats the average rate at which they descend" then you'd have to add the two rates up and divide by two.

Hope this helps :)

NO JOKING AROUND OR I WILL REPORT WHO EVER DOES

A student has $78 in his checking account. If the student spends $12 on lunch, which number could be combined with the amount left in the account to make zero?
–90
–78
–66
–12

Answers

Answer:

Its 66 i just did a 50 question quiz and got it right

Step-by-step explanation:

No cheaters when I say steps I mean steps!!!! If you cheat you'll wish you didnt

I don't just want the answer I want the steps to get to the answer steps steps steps plss I'm dying right now I've been doing school all day and I'm freaking out please help and explain answer
Whats 10.53+14.5+6.9+6.3+6.8

Show all your work or else don't answer at all.

Answers

I take 10.53 and 14.5 first, then add those up to 25.03, then save it for later, then 6.9 and 6.3, and add those into 13.2, then add 6.8 to the smallest of the two I have, then getting 20, and then I add the rest into 45.03.

Please no fakes this is the last of my points please try really hard to figure out this problem. if you don't get it go to another person question then answer it please just dont say idk. im beggin you!!! :(

Answers

Answer:

A.

- Line 1 - Dead Sea

- Line 2 - Lake Assal

- Line 3 - Laguna del Carbon

- Line 4 - Death Valley

B.

Lake because it is closer to zero on a number line than Death Valley

C.

-8 < -282 < 0

Hope This Helps! And so sorry it tool me so long to answer!

An exterior angle of a triangle has a measure of 80°, and one of the remote interior angles has a measure of 20°. Write and solve an
equation to find the measure of the other remote interior angle.
Enter the correct answers in the boxes.
Equation:
X=

Answers

Your answer would be 0.6, 3/5, and 6% are the 3 same portion. But, when they're all changed to a decimal they would equal to 0.6.

Triangle is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

The exterior angle is equal to the sum of the interior angles in a given triangle.

The measure of the other remote interior angle is 60°.

What is a triangle?

It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

We have,

Let the measure of the other interior angle = M

The exterior angle is equal to the sum of the interior angles in a given triangle.

An exterior angle of a triangle has a measure of 80°, and one of the remote interior angles has a measure of 20°.

This means,

M + 20 = 80

Solve for M.

M + 20 = 80

Subtract 20 on both sides.

M = 80 - 20

M = 60

Thus,

The measure of the other remote interior angle is 60°.

Learn more about triangles here:

https://brainly.com/question/25950519

#SPJ2

Which of the following does not represent a function?
PLEASE HELPP ME
15 POINTS OR BRAINLIEST ?!??

Answers

Answer:

G is not a function

Step-by-step explanation:

Answer:

H.

Step-by-step explanation:

something is represented as a function when none of the inputs (x) repeat, but the outputs (y) change. the graph for letter G has repeating x values, but the y values don't change when an x repeats. however, the graph for letter H has repeating inputs (x), but the outputs are different, even with the same input.

that's why parabolas aren't functions (if you know what those are).

hopefully that helps and isn't too confusing! if you need anything else, let me know! :)

Please Help Me ASAP!!!
if f(x)=6x^2-4 and g(x)=2x+2, find (f-g)(x).

Answers

Answer:

i need a picture or something

Step-by-step explanation:

Help please, question attached

Answers

Answer:

C. x = 8

Step-by-step explanation:

We know that x · x · x is equal to 512. We know it cannot be negative because then the 512 would be negative. -2 x -2 x -2 is -8. -2 x -2 is 4. We know it cannot be B x = -6 or D. x = -8.

Let's multiply 6 x 6 x 6.

                           36 x 6 = 216.

Let's multiply 8 x 8 x 8.

                          64 x 8 = 512

                               

The answer would be C. x = 8.

I hope that this helps! :)

Answer:

8

Step-by-step explanation:

x³ = 512

x³ = 8³

Cube root on both sides,

x = 8

pleaae help me
I WILL MARK YOU AS BRAINLIEST ​

Answers

Answer:

50%

Step-by-step explanation:

Answer:

50% each part is worth 25 %

Step-by-step explanation:

EASY

r + 8 - 5r = 2(4 - 2r) solve for r please

Answers

-4r + 8 = 8 - 4r

0 = 0 so it's like {}

Answer:

r = 0

Step-by-step explanation:

This is actually the first time I've actually had a equation with the variable equaling 0.

so first things first you have the equation:

r + 8 - 5r = 2(4 - 2r)

so you are going to add or multiply all the variable numbers together and the none variable numbers together like so:

r + (-5r) and (2*4) and (2* (-2r)) to get the equation looking like so:

8+ (-4r)= 8 -4r

you then add -4r to both sides to get this equation:

8+ ( -4r)= 8 -4r

    + 4r       +4r

8 = 8 + r

you then subtract 8 from both sides to get r:

8 = 8 + r

-8  -8

0 = r

to check substitute the 0 into r in the equation:

r + 8 - 5r = 2(4 - 2r)

0 + 8 - (5*0) = 2(4- (2*0))

8 = 8

Tada!!!

I need help with this

Answers

Answer:

124 degrees

Step-by-step explanation:

x=24 so if you plug in the value and solve it is 124 degrees

The ___ is the set of outputs for a function.

Answers

Answer:

Range

The set of output values is called the range of the function.

Paola can run 300 meters in 15 seconds. If she runs at a constant rate,
how long does it take to run 400 meters?

Answers

16 meters 16meters 16meters

The sales tax in Texas is 8.25% and an item costs $400. How much is
the tax?

Answers

Answer:

Step-by-step explanation:

400*8.25%= $33 tax

Please answer correctly !!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!

Answers

Answer:

5*35+5=180

Step-by-step explanation:

I don’t have a step by step explanation but I can definitely confirm the answer is 180, the equation should be 5*35+5=180 :)

Find an equation for the line below.
Help me please :(

Answers

Answer:

y=3/2x+5/2

Step-by-step explanation:

I used the Y2-Y1/X2-X1

In this equation you can see that there are 2 points (-5,-5) and (1,4)

If you substitute, you will get

4+5/1+5

9/6 and if you simplify this, you will get 3/2

Now that we have the slope, we just have to use y=mx+b

(I'm using the point (1,4))  4=3/2(1)+b

                                         4=3/2+b

                                         5/2=b

Pls it 100 points Y= (X-3)(X+1)(X-2)

Answers

Answer:

x is 2 and y is 0

Step-by-step explanation:

(x-3)(x+1)(x-2)
=(x-3)(x+1)(x+-2)
=(x-3)(x+1)(x)+(x-3)(x+1)(-2)
=x^3-2x^2-3x-2x^2+4x+6
=x^3-4x^2+x+6

PLEASE HELP ME FAST... WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER ​

Answers

Answer:

22.1

Step-by-step explanation:

divide 16.9 by 13= 1.3

17x1.3=22.1

The answer is 22.1 I got it right on my test

Tammy's fish tank has 19 liters of water in it. She plans to add 4 liters per minute until the tank has more than 47 liters. What are the possible numbers of minutes Tammy could add water

Answers

Answer:7 mins

Step-by-step explanation:

47 minus 19 equals 28 4 times 7 equals 8

Tucker drove at a speed of 45 miles per hour. How many feet per hour was Tucker traveling?

Answers

Answer:

237600 feet per hour

Step-by-step explanation:

there are 5280 feet in a mile

if he is going 45mph you multiply 45 by 5280

45 x 5280 = 237600

HELP ME ASAP PLEASEEEEEEEE

Answers

Answer:

y= 3/2x+ 360

Step-by-step explanation:

3/2 is the slope

360 is the b (y intercept)

Answer:

slope m = -60

equation y = -60x + 360

Step-by-step explanation:

to find slope use two points given

(x1, y1) = (6, 0)

(x2, y2) = (0, 360)

m = (360-0) / (0-6) = -60

equation y = mx + b

b is the y intercept at (0,360), b= 360

y = -60x + 360

Write an equation for a line that passes through (3, -4) & has a slope of -3.

Answers

Answer:

The answer is

[tex] \huge y = - 3x + 5[/tex]

Step-by-step explanation:

To find an equation of a line when given the slope and a point we use the formula

[tex]y - y_1 = m(x - x_1)[/tex]

From the question we have

[tex]y + 4 = - 3(x - 3) \\ y + 4 = - 3x + 9 \\ y = - 3x + 9 - 4[/tex]

We have the final answer as

[tex]y = - 3x + 5[/tex]

Hope this helps you

Out of the 25 students in Mrs. Green's class 19 have a pet What percent of the students in Mrs. Green's class have a pet?

The percent of students in Mrs. Green's class that have a pet is _____%

Answers

Answer:

76%

Step-by-step explanation:

Other Questions
Whoever answers gets brainlist! write a 300 words essay about any musical instrument Can someone help me? This is do by 11:59 PM so no rush. Integration of Knowledge & Ideas - (a) In what ways does her mother identify with the buffalo? (b) Contrast - How is Power different from her mother? *the story called museum indians what is the distance betwen (3, 6) and (3, 1) what is Aristocracy,Generotocracy,plutocracy. In the 1840s, nativists believed that immigrantsa. had much in common with them.b. deserved better working conditions.c. could not fit into American society.d. should be better integrated into US society. Why is food defense essential to a foodservice operation?A. to ensure that staff maintain good personal hygieneB. to learn how to keep operational procedures secretC. to protect against deliberate contamination of foodD. to help avoid cleaning practices that contaminate foodE. to know how to design menus that promote healthy eating Can someone help me with doing my constitution project?Basically what I have to do is:"Your task will be to read the Constitution and explain how specific aspects of it relate and apply to real world events. You will demonstrate both that you understand the Constitution and its principles, and that you can explain how the Constitution is relevant to situations in the United States today."Then I will choose three issues from the list below:Freedom of SpeechSeparation of Church and StateGun ownership/rightsIllegal Search and SeizureFreedom of AssemblyNatural Born CitizenAmending the ConstitutionFreedom of PressSupreme Court Justice NominationTrial by JuryVoting RightsEqual ProtectionCitizenshipOverride Presidential VetoConference Committee for a BillPresidential NomineeImpeachment of the PresidentSpeedy Trial"You will show how the Constitution is relevant by completing these tasks for each issue."Identify a real-world example from the United States of a situation that involves a Constitution issueFind two different news articles from different media sources about the example (for example a newspaper article, television, news blog, news magazine)Find a visual/image about the exampleSummarize the main details (who, what, where, and when) of the example in one paragraph using specific details from your articlesDescribe the Constitutional issue and how the Constitution is being violated in the exampleExplain what you think should happen with the example so as not to violate the Constitution. List all sources in a works cited, in MLA format, at the bottom of each scenario (Link for MLA Citing)Your example must have occurred in the last five yearsUpload your completed assignment to the drop box.Some help would be really nice, and if this is that hard, I can help whoever answers with the most detailed and well written answer with a question of their own. Thanks! math need help please Jason has a lemonade stand but he already made $26 he charges his customers one dollar per lemonade Kaylee has a lemonade stand where she made $16 and she charges the customers two dollars per lemonade which equation shows the number of lemonade, eggs, Kaylee needs to sell to make a higher profit than Jason. A. 26-x26x+1 Why cant china play baseball? what is slope intercept form? The Lanham Act applies to through the Commerce Clause. A store sells candy at $.50, $1, $1.50, $2, and $3 per kilogram.You see that the unit price of candies and the amount of candies that $3 buy vary inversely. What is the constant of variation. Multiply the pairs of numbers and match them to their products. Did parliament serve as a model for American legislaturesTrue or False The exchange of carbon dioxide and oxygen in the alveoli of the lungs is an example of what?C)passive transport Phillipe says he cannot simplify the expression 5^c 2^c. Complete the statement about Phillipe's claim. Plz help!!!!The "British Invasion" that began in 1964 refers to A. British influence on national politics in the United States. B. the British invasion of Western Europe during World War II. C. the British invasion of Southeast Asia after World War II. D. British influence on rock 'n' roll music in the United States.