Subject: Add Maths

Please answerr.

x-2 is a factor of x^3+ax^2+bx-4. Express b in terms of a.

The answer is b=-2-2a but can someone please show the working?

Answers

Answer 1

Answer:

ax2+x3+bx−4

Step-by-step explanation:


Related Questions

(4X + 7) X [5(X - 40)]

Answers

Answer:

4X + 7) =[5(X - 4)]{vertically opposite angle}

4x+7=5x-20

5x-4x=7+20

x=27

Please answer #16.
Write an equation of the line that passes through the given point and is perpendicular to the graph of the given equation. Please answer ASAP! Thank you:)

Answers

Answer:

you kinda cute not gonna lie

3. Given the statement "x - 4 is a factor of f(x)= 5x* – 22x - 2x2 – 25x +4". explain how to verify the
statement is accurate.

Answers

Step-by-step explanation:

x - 4 = 0

=> x = 4

f(x)= 5x – 22x - 2x² – 25x +4

By remainder theorem,

f(4)= 5(4) – 22(4) - 2(4)² – 25(4) + 4

    = 20 - 88 - 32 - 100 + 4 ≠ 0

Since the remainder is not 0, x - 4 is not a factor.

Hope it helps :)

Please mark my answer as the brainliest

Please help find the missing side length !! M=

Answers

m = 4

As ABCD is similar to QRST.

All sides of ABCD are same. So, all sides of QRST are also same.

Answer:

4

Step-by-step explanation:

Since QRST ~ ABCD,

QT = 4

which makes

RS= 4

PLEASE MARK ME AS BRAINLIEST!!!!!

Write the expression to match the phrase.

half as many pages as George read

Answers

Answer:

x/2

Step-by-step explanation:

x being the number of pages George read and divided by 2 because it is half that number !

I need help really bad please help me

Answers

Answer:

Step-by-step explanation:

FIRST ONE

-7x and -2x can both be combined

Complete the table by filling in the probabilities of the population’s preferences.

Answers

I can’t see the picture... pls send a pic so I can solve

Answer:

0.60

0.60

0.95

1-0.95=0.05

Step-by-step explanation:

Sample answer on Plato

At the beach the cost for renting a surf board is 39 dollars for 3 hrs. At this rate that is the charge for 8 hrs.

Answers

Answer:

$104

Step-by-step explanation:  

So, in one hour it would cost $13. Times 8, because we want to see what would be the cost for 8 hours, and 8 times 13 is 104.

Find the values of x and y - i will give brainliest if right

Answers

Answer:

itd x=68 and y=5 I apolgize if its wrong

The measure of A is 14 degrees greater than the measure of B. The two angles are complementary. Find the measure of each angle

Answers

Answer:

[tex]A = 52[/tex], [tex]B = 38[/tex]

Step-by-step explanation:

The sum of two complementary angles is always [tex]90[/tex]°

[tex]A + B = 90[/tex]

[tex]A = B + 14[/tex]

substitute [tex]A[/tex] for [tex]B = 14[/tex]

[tex](B + 14)+ B = 90[/tex]

[tex]2B + 14 = 90[/tex]

[tex]2B = 76[/tex]

[tex]B = 38[/tex]

input this into the original equation

[tex]A + 38 = 90[/tex]

[tex]A = 52[/tex]

plz mark me brainliest ;)

A baby elephant weighs approximately 2.5 x 10 pounds. If an adult elephant can weigh up to 56 times more than a newborn elephant, how much could an adult elephant weigh?

Answers

Answer:

1400

Step-by-step explanation:

Answer:

1400 I hope its correct

What is 45 minutes before 7 o'clock

Answers

Answer: Its 6:15

Step-by-step explanation:

Its simple math. 7:00 subtract 45minutes, knowing that 60minutes is an hour and that its the 7 hour from the 6 hour. Gets you 6:15.

Yep.

The 45 minutes before 7 o'clock will be 6.15 AM/PM.

What is the time?

the indefinite continued progress of existence and events in the past, present, and future regarded as a whole.

In other words, time is something which measure by motion and it is given by einstein that time depends upon motion.

For example time = distance/velocity so it means time also depends on velocity.

In the given question, we know that in

1 hour  = 60 minutes

45 minutes before of 7 o'clock = 60 - 45 = 15 minutes after 6 o'clock hence 6.15 minutes will be correct answer.

For more about time

https://brainly.com/question/28050940

#SPJ2

HELP ME I NEED THE ANSWER NOW

(Rip my mom makes me do trig when I’m literally in grade 6)

Answers

the answer would be solved in that problem below. However, there is a simpler way to solve it, which you’ll learn soon, using sine, cosine, and tangent. Props to you for learning such a hard subject at a young age

share £26 amongst three people in the ratio 6:3:4

Answers

Answer:

3u-> 6

4u->8

6u->12

Step-by-step explanation:

6 + 3 + 4 =13

13u-> 26

1u-> 2

3u-> 6

4u->8

6u->12

◦ A bus travels with an acceleration of 2m/s2 and reaches a speed of 45km/h in 5 seconds
◦ What was the initial velocity of the bus in m/s?
Please can you help me?

Answers

Answer:

I don't know that one sorry

Select all possible cross sections of a sphere.
A
point
B
square
circle
D
triangle

Answers

Answer:

The only cross sections a sphere has is a circle.

A regular pentagon's sides each have a length of 7 cm and an apothem of 8 cm. What's the area of the pentagon? (giving brainliest!!)

150 cm²

146 cm²

127 cm²

140 cm²

Answers

Answer:

140 cm^2

Step-by-step explanation:

(5 apothems cut the pentagon into 5 rectangles 8 x 3.5)

3.5 x 8 x 5 = 140 cm^2

MULTIPLYING POWERS WITH THE SAME BASE
Match each product of powers with its simplified expression

Answers

Answer:

1. 5²  

2. 5⁴

3. 1/5⁶

4. 5⁰

5. 5¹⁰

Step-by-step explanation:

1. 5⁶⁺⁽⁻⁴⁾=5²

2. 5¹⁺³=5⁴

3. 5⁻³⁺⁽⁻³⁾=5⁻⁶=1/5⁶

4. 5⁽⁻⁴⁾⁺⁴⁺⁰=5⁰

5. 5⁷⁺³=5¹⁰

your answer would be the following:

1. 5²  

2. 5⁴

3. 1/5⁶

4. 5⁰

5. 5¹⁰

Right on EDGE 2021 for math

Solve the system of lineal ed
3. y = -3/2 x + 1
y = 12x-3

Answers

Answer:

nose pero descarga symbolab en play stores ahí te dará la respuesta

graph y=-2(x-5)(x+1)

Answers

Answer:

Y=2(x-5)(x+1)

Y=2x-10+2x+2

=4x-8

Y =4x-8

Every three years the population of one part of Brooklyn is recorded.
In 2014 there was a population of 10,500 people.
From 2014 to 2017 the population increased by 22%.
From 2017 to 2020 the population decreased by 10%.
What was the population of this area in 2020?

Answers

Answer:

11,529

Step-by-step explanation:

10500x22%=2310

10500+2310=12810

12810x10%=1281

12810-1281=11529

Answer:

Hello there!

Your question asks to find what was the size of the population in 2017

Answer: 6,721

In order to solve this problem, we're going to need to use the given information in the question in order to find the population in 2017.

Key information:

In 2010, population was 6500

In 2014, population increased by 10% from 2010

In 2017, population decreased by 6% from 2014.

With the information above, we can solve the problem.

We're going to start with 6500 as our starting population.

We know that the population increased by 10% in 2014, so we would multiply 6500 by 1.10.

Step-by-step explanation:

of a football team's season touchdowns, about 43% came by passing. If the team scored 28 touchdowns, how many were by other means?​

Answers

43% were from passing so 100% - 43% = 57% came by other means.

28 x 57% = 28 x 0.57 = 16

16 came from different means.

Solve two and one third times four fifths

Answers

Answer:

1 13/15 is your answer

Step-by-step explanation:

2 1/3 x 4/5 = 1 13/15

Karla is selling tickets for a high school play. Child tickets cost $7 and adult tickets cost $13 she sells 180 tickets and collects $1830 Setup a system of equations using C for number of child tickets and A for number of adult tickets to find the number of each ticket sold

Answers

Answer: The number of child tickets is 85 and the number of adult tickets is 95.

Step-by-step explanation:

Let C = Number of child tickets

A = Number of adult tickets.

As per given, we have

C+A=180          (i)

7C+13A=1830           (ii)

Multiply 7 to both sides of equation (ii), we get

7C+7A=1260     (iii)

Eliminate (iii) from (ii) , we get

[tex]6A=570\\\\\Rightarrow\ A=95[/tex]

Put value of y in (i), we get

C= 85

Hence, the number of child tickets is 85 and the number of adult tickets is 95.

Which are pairs of vertical angles? \
A = ∠COB & ∠COA
B = ∠BOD & ∠AOD
C = ∠COB & ∠AOD
D = ∠AOD & ∠AOC

Answers

Answer:

it is b sorry I tried to work out it best have a nice day

Answer:

a=

Step-by-step explanation:

i really need help please​

Answers

Answer:

i dont care F

Step-by-step explanation:

ag

LAST question !! need help with number 9 but if u can help me with #8 ur an angel

Answers

Answer:

8) interior angle = 160

9) x = 20

Step-by-step explanation:

8)

18-gon has 18 sides

The formula for sum of interior angles for an 18-gon is:

(18x180)-360 = 2880 degrees

2880 degrees / 18 angles = 160 degrees

9)  

exterior angles = 360 degrees

360 = (3x-2)+(x+8)+(4x+9)+(2x-1)+(3x)+(4x+6)

360 = 3x-2+x+8+4x+9+2x-1+3x+4x+6

360 = 17x+20

17x = 340

x = 20 degrees

who ever gets it 5 star and brainlessiess​

Answers

Answer:

I think it C if it not please don't report me

NEED HELP ASAP GIVING 50-100 POINT BRAINLEST:


Write a real world situation that could be represented using the following equation:

11x = 385

Answers

Answer:

You want to buy 11 cookies but you want to know the price of each cookie so your friends can pay you back. The total amount is $385 for the cookies. How much is each cookie?

Step-by-step explanation:

Here you go you can modify it a tiny bit if it can't be asked in question format anyway please brainliest.

Given the equation find the y-intercept. Write it as a coordinate ( 0 , y ).
y=-4x+3

Answers

Answer:

(0, 3)

Step-by-step explanation:

The equation already shows the y-intercept (written as +3). The slope is -4x and the y-intercept is (0, 3).

Answer:

y=3

Step-by-step explanation:

Because we know x equals 0 we put that into the equation so then you have y=4(0)+3 you multiply 4 time 0 and get 0 so all you have left is 3.

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