if (x+a) is a factor of x^2+px+q and x^2+mx+n, then prove that a=(n-q) /(m-p)​​

Answers

Answer 1

Given polynomials are,

[tex]\rm{f(x)=x^2+px+q}[/tex]

[tex]\rm{g(x)=x^2+mx+n}[/tex]

According to Remainder Theorem, if (x + a) is a factor of f(x), then,

[tex]\longrightarrow\rm{0=f(-a)}[/tex]

[tex]\longrightarrow\rm{0=(-a)^2+p(-a)+q}[/tex]

[tex]\longrightarrow\rm{0=a^2-pa+q\quad\dots(1)}[/tex]

Similarly, if (x + a) is a factor of g(x), then,

[tex]\longrightarrow\rm{0=g(-a)}[/tex]

[tex]\longrightarrow\rm{0=(-a)^2+m(-a)+n}[/tex]

[tex]\longrightarrow\rm{0=a^2-ma+n\quad\dots(2)}[/tex]

Subtracting (2) from (1),

[tex]\longrightarrow\rm{0=(a^2-pa+q)-(a^2-ma+n)}[/tex]

[tex]\longrightarrow\rm{0=a^2-pa+q-a^2+ma-n}[/tex]

[tex]\longrightarrow\rm{0=(m-p)a+q-n}[/tex]

[tex]\longrightarrow\rm{0=(m-p)a-(n-q)}[/tex]

[tex]\longrightarrow\rm{(m-p)a=n-q}[/tex]

[tex]\longrightarrow\rm{\underline{\underline{a=\dfrac{n-q}{m-p}}}}[/tex]

Hence Proved!


Related Questions

2. A physical fitness researcher devises a test of strength and finds that the results are normally distributed with a mean of 110 pounds and a standard deviation of 10.4 pounds. If a subject is randomly selected and measured, find the probability of a score between 110 and 128 pounds. (5

Answers

Answer:

Step-by-step explanation:

A physical fitness researcher devises a test of strength and finds that the results are normally distributed with a mean of 110 pounds and a standard deviation of 10.4 pounds. If a subject is randomly selected and measured, find the probability of a score between 110 and 128 pounds. (5

Given f(x)=(0.5)^x, give the rule for g(x) if it is f(x) shifted to the left 1 unit, down 3 units, and reflected over the x-axis

Answers

Answer:

g(x) = -(0.5)^(x + 1) + 3

Step-by-step explanation:

First, let's define the transformations used in this case:

Horizontal shift (horizontal translation):

If we have a function f(x), a horizontal translation can be written as:

g(x) = f(x - N)

if N is positive, the translation is to the right

if N is negative, the translation s to the left.

Vertical shift (vertical translation):

If we have a function f(x), a vertical translation can be written as:

g(x) = f(x) + N

if N is positive, the translation is upwards

if N is negative, the translation is downwards.

Reflection over the x-axis.

If we have a function f(x), a reflection over the x-axis is written as:

g(x) = -f(x).

Now we have the function:

f(x) = (0.5)^x

Let's apply the transformations:

"shifted to the left 1 unit"

g(x) = f(x - (-1) ) = f(x + 1)

"shifted down 3 unts"

g(x) = f(x + 1) - 3

"reflected over the x-axis"

g(x) = -(  f(x + 1) - 3 ) = -f(x + 1) + 3

now we can replace the function equation here and get:

g(x) = -f(x + 1) + 3 = -(0.5)^(x + 1) + 3

PLS HELP ILL GIVE THE BRAINLEST PLEASSSSSE

Answers

Answer:
7) ARC DE = 189
ARC EF = 13
ARC DFG = 347
8) ARC MN= 65
ARC NP= 115
ARC NQP= 245

Explanation:
7) 2 *vertical angles so double* (x-3) + 2 * vertical angles so double* 12x-25) = 360 *Total Degree of a circle*
2x-6 +24x-50 =360
26x -56 = 360
26x=416
x=16
Plug it back into the Formula.
Arc EF = x-3
16-3 = 13
Arc 12x -25 *Vertical Angels so same formula as Arc GF*
12(16)-3= 189
ARC DFG = 360 - ARC DG
360 - 13 = 347

8) 10x -45 = 6x-1 *vertical angles equal each other*
4x-45 =-1
4x =44
x=11
ARC MN = 10x -45
10(11)-45=65
ARC NP = 0.5(360 - 2(ARC MN))
0.5(360-130) = 115
ARC NQP = 360 -NP
360-115 = 245

Show all your work. Simplify the expression: 2x + 5 - 6x​

Answers

Answer: =−4x+5

Step-by-step explanation: Hope this help :D

Answer:

-4x+5

Step-by-step explanation:

You have to add like terms together to simplify it.

-6x+2x=-4x

Can someone help me with this. Will Mark brainliest.

Answers

Answer: I think it’s False I’m not sure

Answer:

it's false because isosceles is convex quadrilateral with line of symmetry

PLEASE HELP I WILL MARK BRAINLIEST

Answers

It would be -108 feet

Hope this helps :)

(Would love brainliest)

What is the measure of each side? NEED HELP ASAP

Answers

Answer:

Each side is 5 units long

Step-by-step explanation:

Since the opposite angles are equal then x + 2 = 3x - 4

So solve for x: so  4+2 = 3x - x

6 = 2x

3 = x

So one side is x + 2 = 3 + 2 = 5

The other side is 3x - 4 = 3(3) - 4 = 9-4 = 5

Can someone help me with this PLZ

Answers

Answer:

6 and 8

Step-by-step explanation:

Answer:

6 and 8

Step-by-step explanation:

Q1: 6 and 8

Q2: 8 and 12

Q3: 12 and 15

Q4: 15 and 20

Brainlist Pls!

William has a coin and a spinner, shown below. He can flip heads or tails on the coin and spin numbers 1 through 8 on the spinner. He flips the coin once and spins the spinner once. What is the probability that the coin will land on heads and the spinner will land on an odd number?

Answers

Answer:

1/4

Step-by-step explanation:

Coin sample Space = {H, T}

Spinner sample space = {1, 2, 3, 4, 5, 6, 7, 8}

Probability that coin lands on head :

P(H) = 1 /2

Probability that spinner lands on odd number :

Odd numbers = {1, 3, 5, 7} = 4

P(spinner lands on odd) = 4 / 8 = 1/2

Hence, probability that the coin will land on heads and the spinner will land on an odd number = (1 /2 * 1/2) = 1/4

Help help help help help help help help help help help help help help help help help help​

Answers

Answer:

Step-by-step explanation:

Part 1

P(z < -1.45)

Using the z score table

P =

Part 2

We solve using z score formula

z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation.

a) P(X >52)

x = 52

Mean = 60

Standard deviation = 8

z = 52 - 60/8

z = -1

P-value from Z-Table:

P(x<52) = 0.15866

P(x>52) = 1 - P(x<52) = 0.84134

b) P(48 < x < 64)

convertir 26 grados celsius a grados a grados fahrenheit

Answers

Answer:

Para transformar 26 °C a grados Fahrenheit tienes que multiplicar 26 x 9/5 y después sumarle 32. 1 °C son 33,8 °F.

Step-by-step explanation:

26 degrees Celsius is equal to 78.8 degrees Fahrenheit.

To convert 26 degrees Celsius to degrees Fahrenheit, you can use the following formula:

°F = (°C × 9/5) + 32

Plug in the value of celsius.

°F = (26 × 9/5) + 32

°F = (234/5) + 32

°F = 46.8 + 32

°F = 78.8

Therefore, 26 degrees Celsius is equal to 78.8 degrees Fahrenheit.

To learn more on Temperature click:

https://brainly.com/question/7510619

#SPJ6

Convert 26 degrees Celsius to degrees Fahrenheit?

Drag numbers to complete the ratio table. Numbers may be used once or not at all
8
4
15
10
12
Ratio Table
2
5
4

Answers

Answer:

2,4,6 5,10,15

Step-by-step explanation:

A rectangular landing pad measures 20' × 25' with a rectangular target on the pad measuring 6' × 8'. What is the geometric probability that a model rocket falling randomly on the pad will land in the target?

Answers

Answer:

9.6%

Step-by-step explanation:

The probability that a model rocket falling randomly on the pad will land in the target is 9.6% if the rectangular landing pad measures 20' × 25' with a rectangular target on the pad measuring 6' × 8'.

What is probability?

It is defined as the ratio of the number of favourable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.

We have a rectangular landing pad measures 20' × 25' with a rectangular target on the pad measuring 6' × 8'.

To get the geometric probability, we must find the area of the rectangle.

Total outcomes = 20' × 25' = 500'

Total favourable outcomes =  6' × 8' = 48'

Probability = 48/500 = 0.096

= 0.096×100 = 9.6%

Thus, the probability that a model rocket falling randomly on the pad will land in the target is 9.6% if the rectangular landing pad measures 20' × 25' with a rectangular target on the pad measuring 6' × 8'.

Learn more about the probability here:

brainly.com/question/11234923

#SPJ2

Which situation best represents the equation below x-15=60

Answers

Answer:

The correct answer is C. That problem best represent x - 15 =60.

Answer:

C

Step-by-step explanation:

So lets look at the first equation.

This would represent 60-15=x

This is because 60 shells minus 15 shells she gave away.

Next is B, whihc is also 60-15=x

This is because Mr yungs brother is 60 years old and mr yung is 15 years younger.

Next is c, whihc is 60+15=x

This is because they had 60, gave 15 already, and want to find out what they started with.

FInally we are left with d.

This is 15+x=60

Well...none of those look like x-15=60

But lets go back to c:

60+15=x

Lets try to rwwrite this.

Subtract 15 from both sides, and you get:

60=x-15

Just make this proper by putting the x-15 before the 60:

x-15=60

That looks like x-15=60

Now we know our answer!

C

Hope this helps ;)

Given two similar figures, if AB = 17 when DE = 4, and
AC = 6, then DF = ?
Round your answer to the nearest hundredth if necessary.

Answers

yea that link will help u out

Ashley started a savings account with Chase bank. She initially put in $200 in her account. If she was granted a .08% semi-annually, how much would she have in her account after a year?​

Answers

200 * .08 = 16
account now equals 216
216 * .08 = 17.28
total after one year = $233.28

Help me please!!! I’ll mark brainliest!!

Answers

Answer:

all the answers are c on that test my teacher did that same exact test

Step-by-step explanation:

mark brainliest!

Please answer correctly! I will mark you Brainliest! The pictures go together! Please No answering without knowing answer or scamming!

Answers

Answer:

[tex]904.32[/tex]

Step-by-step explanation:

[tex]\frac{4}{3}\cdot \:3.14\cdot \:6^3[/tex]=[tex]904.32[/tex]

The volume of a sphere is [tex]\frac{4}{3}[/tex][tex]\pi[/tex][tex]r^{3}[/tex]

Subtract the following polynomials in this equation.

Answers

Answer:

c

Step-by-step explanation:

it a c....................

I’ll give Brainly est help. B

Answers

Answer:

C) 99 + 3x

Step-by-step explanation:

Since it's always going to cost 99, it'll stay like that since it's a constant

Since it's 3 PER person, that means 3 will have a variable: 3x

Maria decorated her notebook with 44 rectangular stickers. Each sticker was \frac{1}{2}
2
1

inch wide and \frac{11}{16}
16
11

inch long.

Answers

Answer:

[tex]A=\dfrac{121}{8}\ in^2[/tex]

Step-by-step explanation:

There are 44 rectangular stickers

Length of each sticker= (1/2) inch

The width of each sticker = (11/16) inch

We need to find the area of the all stickers. The area of a rectangle is given by :

[tex]A=l\times b\\\\A=44\times \dfrac{1}{2}\times \dfrac{11}{16}\\A=\dfrac{121}{8}\ in^2[/tex]

So, the area of all stickers is equal to [tex]\dfrac{121}{8}\ in^2[/tex].

Which number is a rational number?
9
13

V2
16
49
134

Answers

Hey there :)
Your answer would be 49

I hope this helps :)
And please give it a like

Alexi’s restaurant bill is $58, and he wants to leave a 20 percent tip. Which expression represents the total amount that Alexi needs to pay?

58 dollars (0.20) + 58 dollars
58 dollars (0.20)
58 dollars (20)
58(20) + 58

Answers

Answer:

The Answer is A

Step-by-step explanation:

58(0.2) = 11.6 + 58 = 69.6

it's a

now have a nice DaY

find the product (x+3y^2) (3x-3y^2)

Answers

Answer:

3x^2 - 12x·y^2 - 9y^2·y^4

Step-by-step explanation:

Apply the distributive property of multiplication here.

x times (3x - 3y^2) is 3x^2 - 3x·y^2.

3y^2 times (3x - 3y^2) is 9x·y^2 - 9y^2·y^4.  

Thus, the desired product of the given binomials is the sum of the above results:

3x^2 - 3x·y^2 - 9x·y^2 - 9y^2·y^4

which shortens to   3x^2 - 12x·y^2 - 9y^2·y^4

For what value of a is - 4a zero of the polynomial p(x) = x ^ 2 - x - (2a + 2) ^ 2​

Answers

Answer: [tex]a=\dfrac{1\pm \sqrt{13}}{6}[/tex]

Step-by-step explanation:

Given

Quadratic Equation is  [tex]x^2-x-(2a+2)[/tex]

[tex]-4a[/tex] is the solution of the given equation

[tex]\therefore (-4a)^2-(-4a)-(2a+2)^2=0\\\Rightarrow 16a^2+4a-(4a^2+4+8a)=0\\\Rightarrow 12a^2-4a-4=0\\\Rightarrow 3a^2-a-1=0\\\\\Rightarrow a=\dfrac{1\pm \sqrt{1+12}}{2\times 3}=\dfrac{1\pm \sqrt{13}}{6}[/tex]

help
i will give brainly

Answers

Answer:

I think its store A.

Step-by-step explanation:

Correct me if I am wrong please

Determine the standard deviation (sigma) by filling in the table as part of your calculation.

Consider the following data 13, 14, 11, 11, 13, 10
x
x Overbar
x minus x Overbar
(x minus x Overbar) squared







a.
0.82
c.
1
b.
1.41
d.
0.41



Please select the best answer from the choices provided


A
B
C
D

Answers

Answer:

b

Step-by-step explanation:

acellus sucks

Answer:

B

Step-by-step explanation:

i need help i need help asap

Answers

Answer:

2(x-3)^2

Step-by-step explanation: simplify second expression and combine

Plz help ASAP I will mark u branliest

Answers

Answer:

1. Three                                           1. Two

2. Four                                           2. Five

Step-by-step explanation:

GIVE ME A SOLID ANSWER

I gain: These 2 pages answers

You gain: 25 points brainliest

Answers

Answer:

Sorry but it is really difficult to see the questions... :(

Can you zoom up on them?

Step-by-step explanation:

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