Solve 2x²-x-6=0 by factorisation

Answers

Answer 1

Answer:

x = 2, x = -3/2

Step-by-step explanation:

Factors to be (x-2)(2x+3) = 0

x =2, x = -3/2

Answer 2

Answer:

Step-by-step explanation:

2x²-x-6=0

2x²-(4-3)x-6=0

2x²-4x+3x-6=0

2x(x-2)+3(x-2)=0

(x-2)(2x+3)=0


Related Questions

what value from the set makes x/6 =18
true?
A.3
B.12
C.54
D.108​

Answers

Answer:

D

Step-by-step explanation:

Plug it in 108 divide by 6


8 The length of Adriana's chicken coop is 3x + 12 feet. The length of her garden is
6x – 16 feet. The garden is the length of the chicken coop.
What is the length of the chicken coop? Enter the number of feet only.
What is the length of the garden? Enter the number of feet only.

Answers

Answer:

Rounded down to the nearest foot, the length of the garden is nine feet.

Step-by-step explanation:

We're told that the length of the chicken coop, 3x + 12 feet, is equal to the length of the garden, 6x - 16 feet.  Let's put them together then and solve for x:

3x + 12 = 6x - 16

First, we'll subtract 6x from both sides

3x - 6x + 12 = 6x - 6x - 16

-3x + 12 = -16

Now we subtract 12 from both sides:

-3x + 12 - 12 = -16 - 12

-3x = -28

Finally divide both sides by -3

-3x / -3 = -28 / -3

x = 28/3

x = 9 and 1/3

As the question asks for the number of feet only (not inches), the answer is nine feet.

A third of a foot though is four inches, so the more exact answer is nine feet and four inches, or 9'4"

Please answer this problem 3x−9<6

Answers

Answer:

your answer is five

Step-by-step explanation:

and stay safe and happy

8. Find the value of
8^x/2^y
if 3x - y = 4,

Answers

Hopes this helps:

Answer: 32

1. Simplify 8^3 to 512.
512 / 2^4

2. Simplify 2^4 to 16.
512 / 16

3. Simplify 513 / 16 to 32.
32

Which graph shows a proportional relationship between X and y

Answers

C is correct cause it’s a straight line going through the middle

PLEASE HELP QUICKK!!!! TYSM!!! ​

Answers

Answer:

The answer for the question is 3/10

1
-
2 x(x-2x+4
Ayuda

Answers

Answer:

Simplified - 2x(-x+4), Solution - -2x(-x+4)

Please I’m dying to know the answer can anyone help me?

Answers

Answer:

-1/3x+2y=4

Step-by-step explanation:

Substitute the negative reciprocal.

-1/3x+2y=4


Will 3in,4in,7in form a triangle.

Will 3in, 4in, 6in form a triangle

Will 1m, 2m, 3m form a triangle
Yes or no

Answers

Answer:

No, Yes, No

Step-by-step explanation:

3in by 4in by 5in will not make a triangle.

3in by 4in by 6in will make a triangle.

1m by 2m by 3m will not make a triangle.

The reason two of these triangles cannot be form is because the side lengths do not adhere to the triangle inequality theorem. This theorem states that the sum of the side lengths of any 2 sides of a triangle must exceed the length of the third side.

Suppose that the Celsius temperature at the point (x, y) in the xy-plane is T(x, y) = x sin 2y and that distance in the xy-plane is measured in meters. A particle is moving clockwise around the circle of radius 1 m centered at the origin at the constant rate of 2 m/sec.How fast is the temperature experienced by the particle changing in degrees Celsius per meter at the point?

Answers

Missing information:

How fast is the temperature experienced by the particle changing in degrees Celsius per meter at the point

[tex]P = (\frac{1}{2}, \frac{\sqrt 3}{2})[/tex]

Answer:

[tex]Rate = 0.935042^\circ /cm[/tex]

Step-by-step explanation:

Given

[tex]P = (\frac{1}{2}, \frac{\sqrt 3}{2})[/tex]

[tex]T(x,y) =x\sin2y[/tex]

[tex]r = 1m[/tex]

[tex]v = 2m/s[/tex]

Express the given point P as a unit tangent vector:

[tex]P = (\frac{1}{2}, \frac{\sqrt 3}{2})[/tex]

[tex]u = \frac{\sqrt 3}{2}i - \frac{1}{2}j[/tex]

Next, find the gradient of P and T using: [tex]\triangle T = \nabla T * u[/tex]

Where

[tex]\nabla T|_{(\frac{1}{2}, \frac{\sqrt 3}{2})} = (sin \sqrt 3)i + (cos \sqrt 3)j[/tex]

So: the gradient becomes:

[tex]\triangle T = \nabla T * u[/tex]

[tex]\triangle T = [(sin \sqrt 3)i + (cos \sqrt 3)j] * [\frac{\sqrt 3}{2}i - \frac{1}{2}j][/tex]

By vector multiplication, we have:

[tex]\triangle T = (sin \sqrt 3)* \frac{\sqrt 3}{2} - (cos \sqrt 3) \frac{1}{2}[/tex]

[tex]\triangle T = 0.9870 * 0.8660 - (-0.1606 * 0.5)[/tex]

[tex]\triangle T = 0.9870 * 0.8660 +0.1606 * 0.5[/tex]

[tex]\triangle T = 0.935042[/tex]

Hence, the rate is:

[tex]Rate = \triangle T = 0.935042^\circ /cm[/tex]

How many cubes with the side lengths of 1/4 cm does it take to fill the prism?

Answers

9514 1404 393

Answer:

  224 cubes

Step-by-step explanation:

In terms of 1/4 cm cubes, the dimensions of the prism are ...

  (2 cm)/(1/4 cm/cube) = 8 cubes long

  (7/4 cm)/(1/4 cm/cube) = 7 cubes wide

  (1 cm)/(1/4 cm/cube) = 4 cubes high

The volume in 1/4-cm cubes is ...

  V = LWH = (8)(7)(4) = 224 . . . cubes

224 cubes are required to fill the volume.

What is the common denominator of 4/12

Answers

Answer:

lcm of

Step-by-step explanation:

it is 12and 2.........

Juan threw a dart onto the board. Which of the following is most likely?

A. Juan scored 0 points.
B. Juan scored at least 2 points.
C. Juan scored at least 4 points.
D. Juan scored at least 8 points.

Answers

Answer:

I think the answer should be.

B

Answer:

B

Step-by-step explanation:Edg 2021

I can’t find the answer pls help!!

Answers

Answer:

470 x 1.1 = 517

Step-by-step explanation:

Does anyone know how to do this

csc x ( sin x + cos x) = 1 + cot x ​

Answers

9514 1404 393

Explanation:

Use the identities ...

  csc(x) = 1/sin(x)

  cot(x) = cos(x)/sin(x)

__

  [tex]\csc(x)(\sin(x)+\cos(x))=1+\cot(x)\\\\\dfrac{1}{\sin(x)}(\sin(x)+\cos(x))=1+\cot(x)\\\\\dfrac{\sin(x)}{\sin(x)}+\dfrac{\cos(x)}{\sin(x)}=1+\cot(x)\\\\1+\cot(x)=1+\cot(x)[/tex]

A program to restore an endangered frog species began 8 months
ago. The table shows the population of the species at various
times since the program began.
Month
Number of Frogs
0
11
2
69
4
195
6
547
8
1,231
On average, what has been the monthly change in the frog
population over the last 4 months?

Answers

Answer:

195

Step-by-step explanation:

Therefore, the monthly change in the frog population over the last four months is [tex]195[/tex].

What is the simplification?

Simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.

As per the given information,

The monthly change in the frog population over the last four months is [tex]195[/tex].

Hence, the monthly change in the frog population over the last four months is [tex]195[/tex].

To know more about the simplification

https://brainly.com/question/12795317

#SPJ2

1.What is the total interest you will have paid for the scenario below?

The home you purchased was sold for $141,000 with a fixed APR of 1.035% across 40 years. The down payment required was 6.0%.
help what is it

Answers

Answer:

la respuesta que buscas es bastante simple pero no lo sé

Step-by-step explanation:

6% of 141,000 is $8460. Subtract 8460 from 141,000= 132,540. Interest=principal x rate x time. 132,540 x 0.01035 x 40 = $54,871.56

50 POINTS QUICK Given that a­­b = x, evaluate the following:

1.) [tex]a^{2b}[/tex]
2.)[tex]a^{b+2}[/tex]

Answers

Answer:

2)The answer is x*a^2 because the equation is saying a^b*a^2. And if we knew that a^b = x, then the answer is x*a^2

Step-by-step explanation:

Matthew kennedy of urbana, ohio is single and has been working as an admissions counselor at a university for five years. mathhew owns a home values at 250,000 on which he owns 135,000. he has a two year old vehicle valued at 32,000 on which he owes 26,000. he has about 20,000 remaining on hisnstudent loans. his rerirment account has grown to 32,000, and he owns some stock valued at 9,000. matthew has no life insurance and is considering buying some. how much should he buy?

Answers

Answer:

10,000.

Step-by-step explanation:

The solution is, Total assets is 164754.

What is assets?

Assets are resources controlled by the entity as a result of past events and from which future economic benefits are expected to flow to the entity (AAA).

here, we have,

we know,

Mortgage is recorded separated by the home and is treated as liability

Loan & Auto loan are also liabilities of Matthew

Credit cards balances are only his indication of capacity to buy which is if that happens said transaction would result into an obligation of Matthew to pay or simply his liability

we have,

Based on the data given, assets is computed as follows;

Cash (checking account)= 2000

Cash (savings account)= 10000

Home =120000

Investments =12789

Car= 19965

Total assets is = 164754

learn more on assets click:

https://brainly.com/question/2292167

complete question:

Matthew currently has $2,000 in his checking account and $10,000 in a savings account. He owns a home worth $120,000 and he owes $75,900 on his mortgage. His investments in a 401(k) are valued at $12,789. He owes $29,526 on his student loans and just bought a new car. The car is currently valued at $19,965. His auto loan balance is $19,156. He is carrying a balance on two credit cards that adds up to $5,234. What is the value of Matthew's total assets? (Do not include the $ sign or commas in your answer).

The sales tax rate is 8.5%. If Helen buys a pillow priced at $18, how much tax will she pay?

Answers

she will pay $1.53 for tax

Answer:

$1.53 for tax

Step-by-step explanation:

18 times .085 = 1.53

need help asap provide explanation

Answers

Answer:

B is the correct answer

What is the value of f(x) when x=3?
0 -3
0-2
0 1
04

Answers

01 is the answer! Hope this help

The value of the function when x=3 is approximately 18.83.

What is a function?

Function is a type of relation, or rule, that maps one input to specific single output.

In mathematics, a function is an expression, rule, or law that describes the relationship between one variable (the independent variable) and another variable (the dependent variable) (the dependent variable). In mathematics and the physical sciences, functions are indispensable for formulating physical relationships.

Linear function is a function whose graph is a straight line

We are given that;

The function

Now,

we need to substitute x=3 into the function and simplify it. We get:

3(3)−1​+(1+3)2

=8​+16

≈2.83+16

=4

Therefore, by the given function answer will be 4.

Learn more about function here:

https://brainly.com/question/2253924

#SPJ7

f(x) = -x^2- 4x + 10
in the standard form
f(x) = a(x – h)^2 + k

Answers

Answer:

y = - ( x + 2 )² + 14

Step-by-step explanation:

f(x) = ax² + bx + c

f(x) = a(x - h)² + k (where (h, k) are coordinates of the vertex.

h = - [tex]\frac{b}{2a}[/tex]

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

f(x) = - x² - 4x + 10

a = - 1, b = - 4, c = 10

h = - [tex]\frac{-4}{2(-1)}[/tex] = - 2

k = - ( - 2)² - 4( - 2) + 10 = 14

(h, k) = ( - 2, 14 )

y = - ( x + 2 )² + 14

what is the equation for the graph below?

Answers

Answer:

ummmm, i cant see the graph

Step-by-step explanation:

Mmm, the graph is blurry

a map has a scale of 1 cm :15.5 km two cities are 2.3 cm apart on the map. to the nearest tenth of a kilometer,whatis the actual distance corresponding to the map distance​

Answers

Answer is in link

thylakoids.ml/5dHq

Enya is building a storage cupboard in the shape of a rectangular prism. The rectangular prism has a square base with side lengths of 2.6 feet and a height of 3.4 feet. Use percentage to compare the amount of paint she would use to paint all but the bottom surface of the prism to the amount she would use to paint the entire prism. Round your final answer to the nearest tenth.
(I will mark the person who gets the answer correct as brainliest)

Answers

Answer:

89.7 is the percent

Step-by-step explanation:

38.41/43.7=0.879 (87.9%).

what is the answer to y+5<9

Answers

Answer:

I think the answer would be y<4

i can’t figure this one out.

Answers

Answer:

5

Step-by-step explanation:

3/12=x/20

cross multiply

12x=3(20)

12x=60

x=60/12

x=5

please help me with this ASAP​

Answers

Answer:

32

Step-by-step explanation:

15x+19=2(10x+2)

15x+19=20x+4

19-4=20x-15x

15=5x

x=3

PQ=QN

10x+2=

10(3)+2=

30+2=

32

prove that the roots of x2+(1-k)x+k-3=0 are real for all real values of k​

Answers

The roots of x^2 + (1 - k).x+k-3 = 0 are real for all real values of k

The equation is given as:

x^2 + (1 - k).x+k-3 = 0

For an equation to have real root, then the following must be true:

[tex]b^2 \ge 4ac[/tex]

In x^2 + (1 - k).x+k-3 = 0, we have:

a = 1

b = 1 - k

c = k - 3

So, we have:

[tex](1 - k)^2 \ge 4 * 1 * (k - 3)[/tex]

Evaluate

[tex]1 - 2k + k^2 \ge 4k - 12[/tex]

Collect like terms

[tex]k^2 - 2k - 4k + 1 + 12 \ge 0[/tex]

[tex]k^2 - 6k + 13 \ge 0[/tex]

Using a graphing calculator, the value of k is all real numbers

Hence, the roots of x^2 + (1 - k).x+k-3 = 0 are real for all real values of k

Read more about real values at:

https://brainly.com/question/6499629

Other Questions
57^2y=175Which of the following is the solution of the equation? Which is an equation for the line shown?A) x=2B) y=2C) x=-2D) y=-2 Stephen is experiencing mild FBAO. what should his friend do to help him?A. He should encourage Stephen to continue coughing and begin administrating first aid.B. He should monitor Stephen for signs of severe FBAO and begin administrating first aid.C. He should encourage Stephen to continue coughing and monitor him for signs of a severe FBAO.D. He should encourage Stephen to continue coughing and alternately administer back blows and abdominal thrusts if Stephen becomes unconscious. Marcos delivers newspapers during his summer break. He delivers a different number of papers each day. What percent of the total number of newspapers is delivered on Saturday and Sunday? A. 60% B. 40% C. 36.5% D. 125% CARNEGIE LEARNING 1. Qu hace la mam de Julio?O A. Hace la comida.OB. Enciende el lavaplatos.OC. Limpia el refrigerador.2. Va a ayudar Julio a su mam?O A. S, va a limpiar el refrigerador.OB. No, no va a ayudar.OC. S, la va a ayudar What statements are true about conflictresolution? Check all that apply.Conflict resolution can be completed withoutcalming down first.Resolution techniques may need to becombined.Conflict resolution skills can be applied to alltypes of conflicts. if we subtract the smallest two digit number from the largest two digit number we get True or false: When adding acid to base the phenolphthalein indicator changes colour from colourless to pink at the end of the titration. Diane deposits $7000 into an account that pays simple interest at a rate of 6% per year. How much interest will she be paid in the first 3 years? A fair cube has 2 blue sides, 2 red sides, and 2 green sides.What is the probability of rolling a blue or red side? Please Help!! I will give 10 points and brainliest.. PLEASE HELP!!!!!!Do you think airbags should be mandatory equipment in American cars? Why or why not? U.S. domestic policy would be concerned with all of the following EXCEPT which of the following?Select one:O A. protecting American workers from unjust hiring practices and low payO B. arbitration between China and Taiwan over disputed islands in the South China SeaO C. Investing in roads, dams, and other infrastructure during the Great DepressionO D. protecting the rights of U.S. citizens The manager of a factory wants to compare the mean number of units assembled per employee in a week for two new assembly techniques. Two hundred employees from the factory are randomly selected and each is randomly assigued to one of the two techniques. After teaching 100 employees one technique aud 100 employees the other techuique, the manager records the aumber of uaits each of the employees assembles in one week. Which of the following would be the most appropriate inferential statistical test in this situation?a. Oruc-sauruple z-test b. Two-sample t-test c. Matched Pairs t-test d. Clai-square gooducss-of-fit test e. One-sample t-test HELP OVERDUE!!! IT DOESNT MATTER WHAT ONE YOU CHOOSE!50 POINTS AND BRAINLIEST A magazine has 8 pages of reading for every 2 pages of advertisements. How many pages of reading does it have for 1 advertisement? the parts that make up a cell are called? What are some things that might be necessary to know in order to solve problems involving quadratic regression? Why is a patient given immune suppressors to fight off lupus?Lupus is a type of cancer and suppressing the immune system increases the effects of more potent drugs that destroy cancerous cells.Lupus is a type of cancer, and suppressing the immune system allows for healthy cells to regenerate.Lupus is an autoimmune disease, and suppressing the immune system minimizes the damage to the bodys own cells.Lupus is an autoimmune disease, and suppressing the immune system allows antibiotics to fight the infection. 1 p1.) On Tuesday at lunchtime, it was 29C. By sunset, the temperature haddropped to 16C. How much did the temperature change by?