X2+2x-8 factorised.

Answers

Answer 1

Answer:

( x− 2 ) ( x + 4 )

Step-by-step explanation:

Answer 2

Answer:

[tex] {x}^{2} + 2x - 8 \\ sum = 2 \: and \: product = - 8 \\ factors = 4 \: and \: - 2 \\ = > {x}^{2} + 4x - 2x - 8 \\ = x(x + 4) - 2(x + 4) \\ = (x - 2)(x + 4)[/tex]


Related Questions

CAN SOMEONE PLEASE HELP ME I NEED IT TO PASS THIS CLASS

Answers

3 is 48

2 is 132

4 is 132

Its simple

Graph the following:

A) y=2|x|+3

B)y=2|x|+3

C)y=|2x-3|

D)y=|2x-6|

And find the zero points

Answers

Use math w*y to find these answers. It will be easier especially since it shows the graph

Quais são todos os possíveis pares de fatores quando o produto é 24?

Answers

Answer:

Todos esses outros números são divisores e os fatores de 24 são 2 e 3. Para fatorar um número devemos dividi-lo por números menores começando pelo 2 e ir aumentando, até restar 1.

Step-by-step explanation:

1x24
2x12
3x8
4x6
estos son todos los pares de factores de 24

How do you solve this

Answers

Answer:

1

Step-by-step explanation:

use the 3d equation because x = 1

1-1+1 = 1

A trapezoid has an area of 50 square units. The lengths of the bases are 10 units and 15 units. find the height.
(Explain how did you solve)

Answers

Step-by-step explanation:

area = ( base 1 + base 2 ) ÷ 2 x height

50 = ( 10 + 15) ÷2 x height

50 ÷ 12.5 = height

height = 4

Simplify (-6/7 + 18/28 ) x -7/5

Answers

Hope it cleares up a bit. Hopes this helps

Which ordered pair is a solution of the inequality
y ≥ 4x - 5
A: (3,4)
B: (2,1)
C: (3,0)
D: (1,1)​

Answers

I think it’s D: (1,1)

At srinagar , the temperature was -4°C on Monday and then it dropped by 2°C on tuesday. what was the temperature of Srinagar on Tuesday. ? On Wednesday it rose by 5°C . what was the temperature on this day​

Answers

Answer:

temperature on Monday= -4°C

temperature on Tuesday= -4-2°C = -6°C

temperature on Wednesday = -6°C + 5°C = -1°C

Step-by-step explanation:

hope it helps ❤️

Answer :The answer above is correct

Explanation

Alice has 14 baseball cards. Jason has twice as many card as Alice. Tom has 6 fewer cards than Alice . How many baseball cards do Alice , Jason , and Tom have altogether.

Answers

Answer:

50 cards

Step-by-step explanation:

Alice = 14 cards

Jason = 14 x 2 or 28

Tom = 14 - 6 or 8

The amount of sprinkles needed for a cookie recipe is proportional to the number of
cookies. A batch of 26 cookies calls for 2 tablespoons of sprinkles. What is the
constant of proportionality between the number of cookies and the number of
tablespoons of sprinkles?


Can someone please help me? And explain and show work.?

Answers

Answer:

C. 13

Step-by-step explanation:

26 ÷ 2 = 13

Let me know if that helped!

Thanks for letting me answer!

After completing the fraction division 5 divided 5.3 miko used multiplication shown to check her work

Answers

Answer:

True

Step-by-step explanation:

Miko's work is not shown in this question. Regardless, her process of using multiplication to check her work is correct. When performing a division problem, you can multiply the quotient by the divisor and the product of this multiplication process should be equal to the dividend of the division problem. For example,

5 / 5.3 = 0.9434

0.9434 * 5.3 = 5

Jovan spent 2/3 of his savings on a watch. He also spent of 1/5 his savings on a bag. (a) What fraction of his savings was left? (b) How much did he spend on both the items? Tell me the steps to get the answer please, Thanks... Have A Good Day/ Night.. :D

Answers

Answer:

2/15

13/15

Step-by-step explanation:

Amount spent = sum of amount spent on watch and bag

[tex]\frac{2}{3} + \frac{1}{5}[/tex]

[tex]\frac{10 + 3}{15}[/tex]

= [tex]\frac{13}{15}[/tex]

Fraction left = 1 - amount spent

1 - 13/15

2/15

In a drawing of a
rectangular park, each inch
represents 40 feet. If the
drawing of the park is 18
inches long and 15 inches
wide, what is the perimeter
of the park in feet?

Answers

720 by 600! hope this helps

Which of the following is the maximum amount each year you can put into an IRA before you are fifty?


$3,000

$8,000

$2,000

$5,000

Answers

Answer:

$3,000

hope this helped! :)

Find the value of x to the nearest tenth.​

Answers

9514 1404 393

Answer:

  14.7

Step-by-step explanation:

The law of sines tells you side lengths are proportional to the sine of the opposite angle.

  x/sin(46°) = 7/sin(20°)

  x = 7(sin(46°)/sin(20°)) ≈ 14.7

The value of x is about 14.7.

Robert has two and two-fifths cups of chocolate syrup left in his freezer. He uses one-fourth cup of chocolate syrup when he makes a milkshake. What is the maximum number of milkshakes that Robert can make with the chocolate syrup?

Answers

divide by 2 and then you’ll get your answers

The number of milkshake cups will be 9³/₅.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Robert has two and two-fifths cups of chocolate syrup left in his freezer. He uses one-fourth cup of chocolate syrup when he makes a milkshake.

The number of milkshakes will be calculated as,

Number = 2²/₅ ÷  1 / 4

Number = (12 / 5 ) ÷ ( 1/ 4 )

Number = ( 12 x 4 ) ÷ 5

Number = 48 ÷ 5

Number = 9³/₅

To know more about an expression follow

https://brainly.com/question/25429247

#SPJ5

Manuel earns $7.25 per hour helping his neighbor. Last month he earned $348. Choose the correct equation and solution which determines the number of hours, h, Manuel worked.

Answers

Answer:

Number of hours= 48 hours

Step-by-step explanation:

Giving the following information:

Hourly rate= $7.25

Total earned= $348

To calculate the number of hours worked, we need to use the following formula:

Total earned= hourly rate*number of hours

number of hours= total earned / hourly rate

number of hours= 348 / 7.25

number of hours= 48 hours

find angle that is marked by question mark​

Answers

Answer:

? = 50°

Step-by-step explanation:

? = 180° - 130° = 50°

The sun of the interior angles of a quadrilateral =360
90+90+130+x=360
X=50

stan's test score was 60% on a science test.if there were 35 items on the test,how many did stan miss

Answers

Answer:

21 correct 14 missed

Step-by-step explanation:

21/35 = .6

.6=60%

Answer:

14

Step-by-step explanation:

21 is 60% of 35

35 - 21 = 14

your answer is 14 :)

have a great day^^

please let me know if you didn't get my explanation

A company offers a bonus retirement plans for its executive employees. The

employees are presented with 2 options.

Option #1: They will start an account $5000 and each year earn 25% on the money

in the account. (i.e. a growth factor of 1.25)

Years Warked

2

Retirement Account $5000.00 $6250 00 $781250

Option #2: They will start an account $5000 and each year and each year there after

continue to add $5000 to the account.

Years Worked

Retirement Account 55000.00 $10,000 $15.000

Which retirement option would be worth more at the end of 20 years?

Option #1

Option #2

They are both equal at 20 years,

Answers

Answer:

option 1

Step-by-step explanation:

Option 1 . the value after 20 years can be determined using this formula

FV = P (1 + r)^n

FV = Future value  

P = Present value  

R = interest rate  

N = number of years

5000 x (1.25)^20 = $433,680.87

Option 2 = 5,000 x 20 = $100,0000

Option 1 has a higher value in 20 years

Find the product of the polynomial (2x^3+3) (x+4)

Answers

The answer is 2x^4+8x^3+3x+12

(2x^3 + 3) (x+4)
2x^3(x+4)+3(x+4)
=2x^4+8x^3+3x+12

HELP NEEDED HERE ASAP​

Answers

Answer:

5

Step-by-step explanation:

Plug in 6 in place of x in the expression

1/2x+2

1/2(6)+2

3+2

5

Answer:

5

Step-by-step explanation:

We are given the expression 1/2x + 2 and are asked to find the value when x = 6.

To solve, all we need to do is to substitute x with 6 :

1/2(6) + 2

Multiply 6 by the 1 in the fraction :

6/2 + 2

Divide 6 by 2 :

3 + 2

Add :

5

In a recent survey, 8 people were each asked the number of times they have been on a airplane. Here is a list of the responses.
16,26,12,9,17,26,11,14
Find the range of the data set.

Answers

Answer:

17

Step-by-step explanation:

Always arrange numbers in order from least to greatest.

To find the range you take the MAXIMUM # - MINIMUM #.

MAX # = 26

MIN # = 9

26 - 9 = 17.

A 25 foot ladder is set against the side of a house so that it reaches up 15 feet. If Camden grabs the ladder at its base and pulls it 3 feet farther from the house, how far up the side of the house will the ladder reach now? (The answer is not 12 ft.) Round to the nearest tenth of a foot.

Answers

Answer:

The ladder will reach a height of 9.8 foot

Step-by-step explanation:

Given

Initial Position

[tex]L = 25ft[/tex] --- Length of the ladder

[tex]h = 15ft[/tex] --- height against the wall

New position

[tex]L = 25ft[/tex] --- Length of the ladder

[tex]B = 3ft[/tex] --- 3 feet farther from the wall

Required

Determine the new height the ladder will reach

The question is illustrated using the attached image.

Where

[tex]\triangle ABC[/tex] represents the initial position of the ladder

[tex]\triangle DBE[/tex] represents the new position of the ladder

The new height is represented with BD

Using Pythagoras theorem on [tex]\triangle DBE[/tex]

[tex]DE^2 = BE^2 + BD^2[/tex]

[tex]BE = BC + CE = 20 + 3 = 23[/tex]

[tex]BD = x[/tex]

[tex]DE =25[/tex] --- length of the ladder

So, the expression becomes

[tex]25^2 = 23^2 + x^2[/tex]

[tex]625 = 529 + x^2[/tex]

Collect like terms

[tex]x^2 = -529 + 625[/tex]

[tex]x^2 = 96[/tex]

Take positive square roots of both sides

[tex]x = \sqrt{96[/tex]

[tex]x = 9.8ft[/tex] --- approximated

Answer:

9.8 FT

Step-by-step explanation:

its right

PLS I NEED HELP BRANLIEST FREE
the square below is being reduced by a scale factor of one-third. what is the perimeter of the new drawing.

Answers

Step-by-step explanation:

Scale factor=1/3

one side of spuare=9 (being reduced)

=9÷3=3

perimeter =(3)4

=12cm

help please thanks to whoever answer these will get brainliest and DONT SEND A LINK OR STEAL MY POINTS IF YOU DO I WILL REPORT YOU!!!

Answers

1) A = 1/2 (6+10)(x)

Answer:

All is in the picture

Find the coordinates of the point D (6, - 3) after the transformation (x,y)
x + 3, y - 2).
(-9,5)
0 (-9,-5)
(9,-5)
(9,5)

Answers

For X, you add three which gives you
6+3=9

And for Y, you subtract 2:
-3-2=-5

Your coordinates are (9,-5)

Round each weight to the nearest ounce

Answers

Answer:

1

4

4

2

Step-by-step explanation:

well 1.35 so when you round if its 50 you would round up and if its any lower you round down.

help me pls
will give brainliest

Answers

Answer:

22 qt

Step-by-step explanation:

1 gallon = 4 quart

5 × 4 + 2 = 22 qt

Answer:

22 qt

Step-by-step explanation:

1 gallon = 4 qt

5 gallon = 20qt + 2 =22

he levels of mercury in two different bodies of water are rising. In one body of water the initial measure of mercury is 0.05 parts per billion (ppb) and is rising at a rate of 0.1 ppb each year. In the second body of water the initial measure is 0.12 ppb and the rate of increase is 0.06 ppb each year.

Which equation can be used to find y, the year in which both bodies of water have the same amount of mercury?

0.05 – 0.1y = 0.12 – 0.06y
0.05y + 0.1 = 0.12y + 0.06
0.05 + 0.1y = 0.12 + 0.06y
0.05y – 0.1 = 0.12y – 0.06

Answers

Answer:

i think it is c but i don't know

Step-by-step explanation:

give me a brainiest

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