How can I solve this quadratic equation by factoring?

How Can I Solve This Quadratic Equation By Factoring?

Answers

Answer 1

First set the equation equal to 0 by subtracting n from both sides.

That leaves us with 8n² - 11n = 0.

Since the GCF on the left is n, we can

factor it out to get n(8n - 11) = 0.

So either n = 0 or 8n - 11 = 0.

Solving for n in the second equation, we get n = 11/8.

So our solution is {0, 11/8}.


Related Questions

write the expression (6-3i)+(5+4i) as a complex number in standard form

Answers

Answer:

[tex]11+i[/tex]

Step-by-step explanation:

So we have the expression:

[tex](6-3i)+(5+4i)[/tex]

Remove the parentheses:

[tex]=6-3i+5+4i[/tex]

Combine like terms:

[tex]=6+5-3i+4i[/tex]

Add:

[tex]=11+i[/tex]

This is in standard form. a is 11 and b is 1.

And we're done!

Write a recursive formula for each sequence.
2,20, 200, 2000, ...

Answers

Answer:

1,2

Step-by-step explanation:

The solution to 3x2 – 12x + 24 = 0 is .

Answers

Answer:

Its a step by step to this question with a free tip

Step-by-step explanation:

Tip: Follow bodmas rule use this order to solve these equations

B-Brackets

O-Open

D=Divide

M=Multiply

A=Add

S=Subtract

3x2 = 6

= 6 - 12x + 24 = 0

=6 -0 +24 = 12x

= 30 = 12x

=x = 2.5

3(2)-12x+24=0
6-12x+24
30=12x
x=2.5

3(2)-12(2.5)+24=0
6-30+24=0
-24+24=0
0=0

solve for the missing missing variable C=2πr; C=18.84, π=3.14

Answers

Answer:

The missing variable r = 3

Step-by-step explanation:

C = 2πr

Where,

C = 18.84

π = 3.14

r= ?

The missing variable is r

C = 2πr

Making r the subject

r = C / 2π

= 18.84 / 2*3,14

= 18.84 / 6.28

= 3

r = 3

The missing variable r = 3

Check:

C = 2πr

18.84 = 2*3.14*3

18.84 = 18.84

I'm wondering what this means, I explained the equation but is it correct? Please help!!​

Answers

Answer:

technically, unless it says somewhere that each ticket cost $1 none would be correct, but the answer your looking for is student B

Step-by-step explanation:

Answer:

im pretty sure student b is correct

because every 10 tickets they give away 5 dollars you replace y as 10 and 1/2 of 10 is 5 so you replace the 1/x with 5

btw im not 100%  sure im correct

A number times six plus the same number times two

Answers

Answer:

6x +2x

Step-by-step explanation:

when the number= x, you can just form the equation as per usual. 6x = a number times 6; 2x = a number times 2.

x is used bc the number is an unknown value. only x can be used bc it is stated the same number. hsing different alphabets such as y or z indicates the unknown value ia different.

Answer:

[tex]x ^{2} + 8x + 12[/tex]

Step-by-step explanation:

This works because of the method called "foil"

Help needed ASAP will give BRAINLIEST

Answers

Answer:

95%

Step-by-step explanation:

One and a half hours is 90 minutes.  Going up from the 90 at the bottom, it crosses the line at about 95%.

Answer:

95%

Step-by-step explanation: I am pretty sure it is at least let me know if I am wrong

A used bookstore sells hardback books and paperback books.A hardback book costs $11, including tax.A paperback book costs $5, including tax.Jamal bought 3 more paperback books than hardback books.Jamal spent $47. How many paperback books did Jamal buy? A.2 B.3 C.4 D.5

Answers

Answer:

D.5

Step-by-step explanation:

You can write the following equations from the information given:

y=x+3 (1)

11x+5y=47 (2)

x is the number of hardback books

y is the number of paperback books

You can replace (1) in (2):

11x+5(x+3)=47

11x+5x+15=47

16x=47-15

16x=32

x=32/16

x=2

Then, you can replace the value of x in (1) to find the value of y:

y=2+3

y=5

According to this, the answer is that Jamal bought 5 paperback books.

9:25 y 33:41:38 a que unidades de tiempo se refieren?

Answers

Answer:

Se refieren a las unidades de tiempo del sistema sexagesimal

9:25 son 9 minutos y 25 segundos

33:41:38 son 33 horas, 41 minutos y 38 segundos.

Step-by-step explanation:

El sistema sexagesimal se utiliza para medir tiempos y ángulos.

El tiempo se mide en horas,minutos y segundos

En cambio, los ángulos se miden en grados,minutos y segundos.

Los dos puntos '':'' sirven para separar las unidades.

La base de este sistema es el número 60 :

60 segundos ⇒ 1 minuto

60 minutos ⇒ 1 hora

Eso en cuanto a tiempo

En cuanto a grados :

60 segundos ⇒ 1 minuto

60 minutos ⇒ 1 grado

Cuando tengo dos números como en 9:25 , el número de la derecha corresponde a los segundos y el de la izquierda a los minutos

Entonces, 9:25 son 9 minutos y 25 segundos

Por otro lado, cuando tengo 3 números, como en 33:41:38, el número de la derecha corresponde a los segundos, el de en medio al de los minutos y el de la izquierda al de las horas (si nos referimos a unidades de tiempo).

Entonces, 33:41:38 son 33 horas, 41 minutos y 38 segundos.

The temperature on a cold winter day in Minnesota was-6. Which of the following situation
could explain how the temperature became -6? Select ALL that apply.*
(20 Points)
In the morning, the temperature was -2 degrees. Then, the temperature fell 4 degrees.
The temperature decreased by 4 degrees from a high of 2 degrees earlier in the day.
The temperature was 12 degrees. This temperature fell by 6 degrees as it got dark out.
At 9 a.m., the temperature was -11 degrees. By noon, the temperature had dropped 5 degrees.
At night the temperature was - 1 degree. Then, the temperature fell by 5 degrees during the next day.
The temperature was 15 degrees on Tuesday. A cold front dropped the temperature by 21 degrees at
night.

Answers

Answer:

1st,2nd,5th,6th

Step-by-step explanation:

2.18 as a mixed number

Answers

Answer:

2 9/50

Step-by-step explanation:

2.18

=>218/100

=>109/50

=>2 9/50

Answer:

2 9

/50

Step-by-step explanation:

Convert the decimal number to a fraction by placing the decimal number over a power of ten. Since there are  2  numbers to the right of the decimal point, place the decimal number over  10

^ 2

(

100

)

. Next, add the whole number to the left of the decimal.

2 18/100

Reduce the fractional part of the mixed number

2 9/50

7x-(6x-1)=2. What is the answer?

Answers

Answer:

x=1

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

7x−(6x−1)=2

7x+−1(6x−1)=2(Distribute the Negative Sign)

7x+−1(6x)+(−1)(−1)=2

7x+−6x+1=2

(7x+−6x)+(1)=2(Combine Like Terms)

x+1=2

x+1=2

Step 2: Subtract 1 from both sides.

x+1−1=2−1

x=1

HURRY PLEASE When 5 and 6 are multiplied by the same factor, how do the ratios compare to the ratio 5:6? The ratios are equivalent to 5:6. The ratios are equivalent to 6:5. The ratios are greater than 5:6, as the factors become greater. The ratios are greater than 6:5, as the factors become greater.

Answers

Answer:

The ratios are equivalent.

Step-by-step explanation:

If you multiply both 5 and 6, the ratio stays the same.

5:6 = 10:12 = 15:18 = 20:24 etc.

You can try this by dividing the larger number by the smaller number. You'll always get 1.2 as the "relationship", or ratio, is preserved.

24/20 = 1.2

15/18 = 1.2

10/12 = 1.2

6/5 = 1.2

The price of an item has been reduced by 80% the original price was $20. What is the price of the item now ?

Answers

Answer:

Step-by-step explanation:

80% = 80/100 which also = 4/5

so the price was reduced by 4/5

20 minus 4/5 is = to  20 minus 16/20

which is 20/20 minus 16/20 = to 4/20

simplified is 4 dollars

What is the volume of the cube below?
A. 4x2
B. 16
C. 4x
D. 16x2

Answers

Answer:

a.

Step-by-step explanation:

The volume of cube 4x².

What is Volume?

Volume is a three-dimensional measurement that's used to gauge a solid shape's capacity. It implies that the volume of a closed form determines how much space it can occupy in three dimensions.

We have,

Edges of cube as = 4 , x and x.

So, volume of cube

= 4 x (x . x)

= 4 . x²

= 4x²

Thus, the volume of cube 4x².

Learn more about Volume here:

https://brainly.com/question/1578538

#SPJ5

(2x + 8) (3x + 17) solve for x

Answers

Answer:

x = 22.66

Step-by-step explanation:

1+1= 2 2+2=4 4+4=8 8+8=16 16+16=32 IS THE TABLE CORRECT ?

Answers

yes it’s correct !!!
Yes the answer is correct

If m + 40 - 70, then m =

Answers

Answer:

m-30

Step-by-step explanation:

[tex]m + 40 - 70\\\\\mathrm{Add/Subtract\:the\:numbers:}\:40-70=-30\\=m-30[/tex]

Answer:

m - 30

I hope this helps!

PLEASE HELP Solve for w and simplify your answer.

Answers

Answer:

see below (I hope this helps!)

Step-by-step explanation:

To get rid of the coefficient of w, 3/2 in this case, we must divide the entire equation by 3/2, which is the equivalent of multiplying the entire equation by 2/3. Doing this, we get:

3/2w * 2/3 = -20 * 2/3

w = -40/3 = [tex]-13\frac{1}{3}[/tex]

Plz answer this. Plzzzzzzzzzzzzzzzzz

Answers

Answer:

2^3×6-5÷3-3×4^-4 solving 8×1÷0×0=8÷0= 8

Which expression is equivalent to k+ 0.83k - 0.73k?

A.) k+ 0.1
B.)1+ 0.1k
C.)0.56k
D.)1.1k​

Answers

Answer:

1.1k

Step-by-step explanation:

k+0.83k-0.73k

1.83k-0.73k

1.1k

Hope this helps ;) ❤❤❤

which are linear pairs?

Answers

Where’s the question at my freind

Select each pair of functions that are inverses of each other. f (x) = left-brace (negative 5, negative 9), (negative 3, negative 4), (0, 1), (3, 7), (6, 13) right-brace. G (x) = left-brace (negative 9, negative 5), (negative 4, negative 3), (1, 0), (7, 3), (13, 6), right-brace. f (x) = x + 7; g (x) = x minus 7 2 2-column tables with 4 rows. Table 1 is titled f (x). Column 1 is labeled x with entries 2, 3, 4, 5. Column 2 is labeled y with entries 3, 8, 15, 24. Table 2 is titled g (x). Column 1 is labeled x with entries 5, 4, 3, 2. Column 2 is labeled y with entries 24, 15, 8, 3.

Answers

Answer:

The first two pairs of functions are inverse of each other

Step-by-step explanation:

Inverse functions?

1...................................

f(x) = {(-5, -9), (-3, -4), (0,1), (3,7), (6,13)}

g(x) = {(-9,-5), (-4, -3), (1,0), (7,3), (13,6)}

Yes, this pair is inverse as all points of the functions have inverse values

2...................................

f(x) = x + 7 is given

Inverse of f(x) is

x = f'(x) + 7 ⇒ f'(x) = x - 7

Since g(x) = x - 7 it is inverse with f(x)

Yes, this pair is inverse as described above

3...................................

Data of f(x) and g(x)

x = {2, 3, 4, 5}      f(x) = {3, 8, 15, 24}

x = {5, 4, 3, 2}      g(x) = {24, 15, 8, 3}

No, as both functions have same domain and rangeexample is f(2) = 3 and g(2) = 3 as per table

make m the subject of the relation. k=√m-y/m+1​

Answers

Answer:

Make m the subject of the expression below; 3. Make v the subject of the relation; 4. Given that v 2 = u 2 + 2as, express a in terms of u, v and s. Hence, find the value of a when u = 15, v = 20 and s = 5. 5. An expression is given as.

Author: Toolbar

Step-by-step explanation:

Please help me quick!!!!!!

Answers

130 degrees is the answer

-7x + 5y = 1
10x - 8y = 2

Answers

x = -3

y = -4

Hope that helped :)

Mrs. Bell has an interest rate of 4.175% on her house. Mr. Bentley has an interest rate of 4.25% on his house. Which explains who has the lower interest rate?

Answers

Answer: Mrs Bell

Step-by-step explanation:

From the question, we are informed that Mrs. Bell has an interest rate of 4.175% = 0.04175 on her house and Mr. Bentley has an interest rate of 4.25% = 0.0425 on his house.

The person who has the lower interest is Mrs Bell. This is because 4.25% is higher than Mrs Bell's interest of 4.175%

Answer:

The answer is D

Step-by-step explanation:

Mrs bell has the lower interest rate because both decimals have a 4 in the ones place, and 1 tenth is less than 2 tenths.

Which algebraic expression is a difference with two terms?
O A. 6(x+5)
OB. 6 + x-9
O C. 6x - 9
O D. 9x6

Answers

Answer:

6x-9

the- sign makes it a difference and the two terms are 6x and 9

what is the range set of 72,82,65,67,80,81,67​

Answers

Answer:

17

Step-by-step explanation:

In this case, the data range is 82−65=17 82 - 65 = 17 .

17 . To find range you need to subtract the biggest number from the smallest number, so 82-65=17.

10∧-4 Simplified and what law did you use?

Answers

10 ^-4

Use the negative exponent rule to get:

1/10^4 = 1/10,000 (fraction answer) or 0.0001 (decimal answer)

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