What is the sum of the solutions to the equation below?
8x^2 + 2x - 3 = 0
A) 3/8 B) 1/4 C) -1/4 D - 3/8

Answers

Answer 1

Answer:

(x−1)43x3−8x2+10 can be resolved into partial fraction as x−1A+(x−1)2B+(x−1)3C+(x−1)4D

So , 3x3−8x2+10=A(x−1)3+B(x−1)2+C(x−1)+D

Put x=1 , we get 3−8+10=D

D=5

Comparing the coefficient of x3 on both sides we get , A=3 .

So equation reduces to 3x3−8x2+10=3(x−1)3+B(x−1)2+C(x−1)+5

Now compare the constant on both sides , 10=−3+B−C+5

=>8=B−C - (1)

Comparing the coefficent of x2 we get −8=−9+B

=>B=1

So , put B=1 in (1) , we get C=−7

Therefore , (x−1)43x3−8x2+10=x−13+(x−1)21−(x−1)37+(x−1)45

Step-by-step explanation:

hope it helps


Related Questions

What is the equation of the line that passes through the point (4,1) and has a slope
of 1/2

Answers

Step-by-step explanation:

the typical line equation :

y = ax + b

with "a" being the slope, and b being the y-intercept (the y value when x = 0).

so, the equation starts

y = 1/2 x + b

to get b we use the given point coordinates :

1 = 1/2 × 4 + b = 2 + b

-1 = b

and the whole equation is

y = 1/2 x - 1

20 POINTS PLS
How to tell if your data has a wide range or a small range?

Answers

Range is the amount difference from the minimum and the maximum amount of data . So which ever set has a bigger number had a wider range
Data set with the largest maximum value and smallest minimum value

In a discount basis loan, interest is "pald" at the time the loan is made by deducting the Interest amount from the loan
amount.
“True
False”

Answers

Answer:

true

hope that helps

Step-by-step explanation:

Find the area of the figure below. Show all work for each step. Work should inc
radical. Take your time and be thorough. Include units in final answer.
(-5√2+5√5) ft
(3√2 + 4√5) ft

Answers

Answer:

[tex]5\sqrt{10} +70[/tex] ft

Step-by-step explanation:

AREA = LENGTH x WIDTH

[tex](-5\sqrt{2}+5\sqrt{5})(3\sqrt{2} +4\sqrt{5} )[/tex]

[tex]-15(2)-20\sqrt{10} +15\sqrt{10} +20(5)[/tex]

[tex]-30-5\sqrt{10} +100[/tex]

[tex]5\sqrt{10} +70[/tex]

Important things to keep in mind:

[tex]\sqrt{2} (\sqrt{2} )=2(2)=4[/tex]    Radical goes away (same #)[tex]\sqrt{2} (\sqrt{5})=\sqrt{10}[/tex]          

Solve the system by graphing.
What is the solution of y=-x+4 and y=3/5x+4

Answers

Answer:

x=0 and y=4 thats where the points meet

Step-by-step explanation:

solution of x and y:

both equations equal to y so you can put them together

3/5x+4=-x+4

separate the variables and numbers...

1.6x=0

x=0

y=4

if ur using a graph, use the y intercept (0,4) for your first point

then, using y=-x+4, make -x a fraction -1/1

by using rise/run go down one unit from (0,4) since its negative 1

then one unit to the right from where you are

you should be able to connect the points for the first equation

find the second equation on your own now:)

Tammy took a total of 14 quizzes over the course of 7 weeks. ​ ​How many weeks of school will Tammy have to attend this quarter before she will have taken a total of 18 quizzes? ​ ​Solve using unit rates. ​Answer: weeks.

Answers

Answer:

9 weeks

Step-by-step explanation:

So he basically took 14 quizzes in 7 weeks.

14/7 = 2/quizzes per week

18/2 = 9 weeks

I don't know what you mean by unit rates but this is what I got.

Find the area of the figure.
(Sides meet at right angles.)

Answers

Answer:

16

Step-by-step explanation:

A of rectangle = L x W

= 3 x 4

= 12

A of square = L x W

= 2 x 2

= 4

The result is 16 squared

What’s 8.4 cm converted to in.

Answers

Answer:

3.30709

Step-by-step explanation:

FORMULA :

divide the length value by 2.54

8.4 ÷ 2.54

= 3.30709

16. Lena always keeps her bank account
balance above $50, If she spent $11.60 on
lunch, what was her balance before buying
lunch?
PLEASE HELP

Answers

Step-by-step explanation:

so you add the $50 to $11.60 to get your answer

the answer is 38.4 because you have to subtract 50 and 11.60 and you get 38.4

Please help i am begging

Answers

x is equal to 3 ..

Step-by-step explanation:

hope this helps

66 is 8-% of what number?
4

Answers

The number is 825
66*100/8=825

the temperature on wednesday was "-17" degrees. From Tuesday to Wednesday it got 24 degrees colder. What was the temperature on Tuesday?

Answers

Answer:

-41 degrees

Step-by-step explanation:

Since we're getting colder you would subtract 24 from the current -17 degrees.
-17-24 = -41

If y - 18 = 14, what is the value of 3(y + 5)?

Answers

Answer:

y-18=14

add 18 on both sides

y=32

plug that into the equation below

3(Y+5)

3(32+5)

add 32 and 5

3(37)

multiply

3

....

3 x 37 = 111

What type of association is seen in the scatter plot.

Answers

Answer:

Girl how do you not know this is the most easiest thing /hj

Step-by-step explanation:

its a linear and strong association bc the dots are very refined and stuck together very well

Simplify.
Rewrite the expression in the form a”.
(a”)? = 1



Please needhelp urgently

Answers

Answer:

just randomly write a¹⁰

how many 10 Kobo stamps can I buy with 40 naira​

Answers

Answer:

What is a kobo stemp

Step-by-step explanation:

(n-1 +7) simplify plssss helppp

Answers

Answer: n+6

-1 + 7 = 6

So therefore, the answer is n+6

Hope this helped

Answer:

[tex]\boxed{\sf{n+6}}[/tex]

Step-by-step explanation:

To solve this problem, first, you have to do is isolate it on one side of the equation.

(n-1+7)

First, remove parentheses.

→ n-1+7

Add the numbers from left to right.

→ -1+7=6

→ n+6

Therefore, the final answer is n+6.

I hope this helps you! Let me know if my answer is wrong or not.

How many symmetrical sides does a star have?​

Answers

Answer:

Depends on how many points the star has. For example, a 5 pointed star will have 5 lines of symmetry. Knowing this, you should be able to count using a diagram or drawing of the star

Find N in this equation: N X 4 divided by 2 + 5 - 1 = 20

Answers

Hi!

4n/2+5-1=202n+4=202n=20-42n=16n=8

I will give Brainliest! :<

This meal costs $75.00.

Fatima used a 20% off coupon and then tax was added.

The total after the coupon and tax was $75.00.


What was the tax rate?

Submit and EXPLAIN, please!

Answers

Answer:

25 %

Step-by-step explanation:

75 - 20% = 60

60 + 60 (x) = 75      where x = tax rate  

   x = .25   or 25 %

The answer is 25%
Ik this cause I took the test

$8400 is deposited at an APR of 5%. How much interest has been accrued after 6 years ?

Answers

Answer:

  $2,856.80

Step-by-step explanation:

The formula for the balance of an account earning interest compounded annually is ...

  A = P(1 +r)^t . . . . where P is the principal invested at annual rate r for t years

__

Using the given values, we find the account balance to be ...

  A = $8400(1 +0.05)^6 ≈ $11,256.80

The excess over the initial investment is the interest earned:

  $11,256.80 -8,400 = $2,856.80

The account has accrued $2,856.80 in interest after 6 years.

_____

Additional comment

If the account earns simple interest, it is computed using ...

  I = Prt = $8400(0.05)(6) = $2,520

Determine the correct answer to the following
system of equations:
=
3x – y = 2
-2x + 4y = -8

Answers

Answer:

(0,-2)

Step-by-step explanation:

one way to solve...

3x - y = 2 --> *4

-2x + 4y = -8

multiply the first equation by 4

12x - 4y = 8

-2x + 4y = -8

-----------------

10x = 0

x = 0

y = -2

this method is called elimination

another way to solve...

3x - y = 2 simplify for y to get y = 3x - 2

-2x + 4y = -8 substitute y into this equation to solve for x

-2x + 4(3x - 2) = -8

-2x + 12x - 8 = -8

10x = 0

x = 0

y = -2

substitution

alsoo if there are options, just plug in the numbers to the correct variables

Answer:

3xy=2 2x4y=8

3x2=6x8=48x8

pls help fast!!! will give brainliest!!!!!!

Answers

Answer:

A. About 47.5π

B. About 149.1

Write an expression for the area of the following regular polygon?

Answers

Answer:

126x - 42x²

Step-by-step explanation:

Finding the necessary information

P = Perimeter = 6(6 - 2x) = 36 - 12xa = 7x

Area

1/2 x (36 - 12x) x 7x(18 - 6x) x 7x126x - 42x²

Which decimal is greater: 4.58 or 4.5?

Answers

4.58 is 0.08 greater than 4.5

Answer

Since 3 is greater than 0 we know that 7.835 is greater than 7.8. We follow the same process to find that 7.35 is less than 7.358. Then we can put the number


There you go I hope that helps and have a great day

15√6 cm
12/54 cm
6√24 cm

Answers

Answer:

Step-by-step explanation:

15√6

12√54 = 12√(9×6) = 36√6

6√24 = 6√(4×6) = 12√6

15√6 + 36√6 + 12√6 = 63√6

Which is the best example of an out-of-pocket cost?
A. A claim
B. A benefit
C. A deductible
D. A repair estimate​

Answers

A best example of an out-of-pocket cost is: C. A deductible.

What is an Out-of-Pocket Cost?

An out-of-pocket cost can be described as a cost you pay from your own personal reserve, which may include coinsurance, deductibles, copays, and some services covered by an individual's health plan.

Out-of-pocket cost may be reimbursed.

Thus, a best example of an out-of-pocket cost is: C. A deductible.

Learn more about out-of-pocket cost on:

https://brainly.com/question/26217317

Answer: C. A deductible

Step-by-step explanation:

Rylee read 36 pages of a book before putting
it down for a month. She wants to resume
reading the book that is more than 480 pages
long. She plans on finishing the book in
12 days, reading the same amount each day.
5. Which inequality can be used to determine,
p, the number of pages that Rylee must read
P
each day to attain her goal?
A. 12p - 36 < 480
B. 12p + 36 < 480
C. 12p - 36 > 480
D. 12p + 36 > 480
-

Answers

Answer:

  D. 12p + 36 > 480

Step-by-step explanation:

The number of pages read is the sum of the number already read (36) and the product of the number read each day (p) and the number of days (12). Rylee wants this number of pages read to be more than 480.

__

The inequality expressing a sum greater than 480 is ...

  12p +36 > 480 . . . . choice D

Find the product of
21/3 and 3/4.

Answers

Step-by-step explanation:

[tex] 2 \frac{1}{3} \times \frac{3}{4} \\

[/tex]2 1/3 = 7/3

[tex] \frac{7}{3} \times \frac{3}{4} \\ [/tex]

21/12 = 7/4

The answer is 7\14 :)

Help Asap

One tube of paint covers 1,400 square inches of ramp. Based on this, how many tubes of paint will be needed to paint the ramp

My answer from the answer above is 3,672 sq in.​

Answers

Answer:

  3

Step-by-step explanation:

The number of tubes can be found from an inequality that relates the number of square inches that can be painted to the number of square inches that must be painted.

Let t represent the number of tubes.

  1400t ≥ 3672 . . . . . the number of tubes that will paint at least 3672 in²

  t > 2.623 . . . . . divide by 1400

If only whole numbers of tubes are available, then ...

  3 tubes are needed to paint the ramp.

Answer:

Step-by-step explanation:

 The number of tubes can be found from an inequality that relates the number of square inches that can be painted to the number of square inches that must be painted.

Let t represent the number of tubes.

 1400t ≥ 3672 . . . . . the number of tubes that will paint at least 3672 in²

 t > 2.623 . . . . . divide by 1400

If only whole numbers of tubes a

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