Mathematics High School

Factorise x² - x with explanation please?​

Answers

Answer 1

Answer:

x(x + 1)

Step-by-step explanation: This is an important way of solving quadratic equations. The first step of factorising an expression is to 'take out' any common factors which the terms have. So if you were asked to factorise x² + x, since x goes into both terms, you would write x(x + 1)

Related Questions

Wylie climbs steadily down a trail that is 1,500 feet above sea level for 40 minutes. Then he takes a 10-
minute lunch break. After lunch, Wylie climbs back up the trail for 5 minutes to take a picture. Finally, he
hikes for 15 minutes until he reaches sea level. Which graph best represents this description?
о А.
OB
fy
ТУ
15
15
Elevation (100 ft)
Elevation (100 ft)
x
0 20 40 60
Time (min)
X
0 20 40 60
Time (min)
fy У
15
y
15
Elevation (100 ft)
Elevation (100 ft)
X
0 20 40 60
Time (min)
Х
0
20 40 60
Time (min)

Answers

Answer:

C

Step-by-step explanation:

Ten gallons of a 25% salt solution are to be obtained by mixing solutions that are 13% salt and 33% salt
respectively. How many gallons of each are needed?

Answers

Answer:

salt + salt = salt

0.13x +3.3-0.33x =2.5

-0.20x=-0.8

x= 4 gallons (amt of 13% solution to be mixed)

10-x= 6 gallons (amt of 33% solution to be mixed)

-----------

Cheers,

Stan H.

Step-by-step explanation:

10 points and brainliest

Answers

Answer: D

Step-by-step explanation:

The price of an item yesterday was $160 today price fell $136 find the percentage decrease

Answers

15% ...... fjehwgfokenqlfne

Answer:

15%

Step-by-step explanation:

you just subtract it and convert it to percent

(6x - 3) - (-3x + 2)

Answers

Answer:

Step-by-step explanation:

Simplifying

6x + -3 = (3x + -2)

Reorder the terms:

-3 + 6x = (3x + -2)

Reorder the terms:

-3 + 6x = (-2 + 3x)

Remove parenthesis around (-2 + 3x)

-3 + 6x = -2 + 3x

Solving

-3 + 6x = -2 + 3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3x' to each side of the equation.

-3 + 6x + -3x = -2 + 3x + -3x

Combine like terms: 6x + -3x = 3x

-3 + 3x = -2 + 3x + -3x

Combine like terms: 3x + -3x = 0

-3 + 3x = -2 + 0

-3 + 3x = -2

Add '3' to each side of the equation.

-3 + 3 + 3x = -2 + 3

Combine like terms: -3 + 3 = 0

0 + 3x = -2 + 3

3x = -2 + 3

Combine like terms: -2 + 3 = 1

3x = 1

Divide each side by '3'.

x = 0.3333333333

Simplifying

x = 0.3333333333

Tyson works 34 hours each week at $20.39 per hour.
Tyson has 29.51% taken out for taxes and withholdings,
What is the net pay per year?
A $488.68
B. $10,638.21
C. $204.58
D. $25,411.31

Answers

Answer:

34 X 20.39 = 693.26

693.26 X 52 = 36049.52

100-29.51 = 70.49

36049.52/100 X 70.49 = 25411.306648

monetary value rounded 2dp = $25411.31

answer is D

Find the common difference of the arithmetic
sequence 13,9,5,

Answers

Answer: -4

Step-by-step explanation:

13 - 9 = 4

9 - 5 = 4

so, we can see that it is decreasing by 4 each time.

Answer:

common difference is -4

Step-by-step explanation:

The common difference is the amount we add  between terms

13 + d = 9

Subtract 13 from each side

13+d-13 = 9-13

d = -4

Check

9+d = 5

9 + -4 = 5

5= 5

This is true so the common difference is -4

What do I divide by 5 to get 9

Answers

Step-by-step explanation:

Divide 45 / 5 to get 9

As 5 * 9 = 45

A dog weighs 20% more than it did three months ago. It weighs 36 pounds now.

How much did the dog weigh three months ago?

Answers

Answer:

30 pounds

Step-by-step explanation:

Let the weight 3 month ago be x.

20% more than x is:

1.2x

We now have the following equation:

1.2x = 36x = 36/1.2x = 30 pounds

The doctor recommended that Matt decrease the number of calories he consumed from 3,000 to 2,400. By what percent did the number of calories decrease?

thanks.

Answers

Answer:

28%

Step-by-step explanation:

Answer: 28%

Step-by-step explanation:

1800/2500 = 0.72

0.72 = 72%

100% - 72% =  28%

Long Divison : 3 divided by 2,284 = and don't forget the remainder of it all

Answers

correct questions

2,284 divided by 3,what is the remainder??

Answer :

2,284÷3=761 and remainer=1

Answer:

761 R1

Step-by-step explanation:

Plz help with these 3:)

Answers

Answer: 1) 2

2) 7/10

3) -1/3

PLS HELP THIS IS A MATTER OF LIFE OR DEATH!!I NEED AN ANSWER QUICKLY

Answers

Answer:

Well they are all equal sides so it could really be anything that's an even number ranging from 10-20, hope this helped and good luck on your test! :D

Step-by-step explanation:

make it more points ppl tend to care more

QUICKK
Solve systems by substitution Find the solution
SHOW ALL WORK

X = 5
-4x + y = -10

( , )

Answers

This is the answer (5,10)

- 5/6 m = -60

dude im so sorry but i reallyyy dont get why they put letters in math

Answers

Answer:

m = -72

Step-by-step explanation:

- 5/6m = -60

multiply both sides by - 6/5

m = -72

Hope This Helps!!!

Answer: m=72

Step-by-step explanation: look at the picture it have the explain & hope this help

The scatterplot below shows the number of hours that some high school students spend on working and on video games.
A graph title Working and Video games has weekly working hours on the x-axis and weekly hours of video games on the y-axis. Points are grouped together and decrease.

Which statement about the scatterplot is true?
In general, the number of hours spent working does not affect the number of hours spent on video games.
In general, the amount of weekly time spent working is equal to the amount of weekly time spent on video games.
As the amount of time spent working increases, the amount of time spent on video games increases.
As the number of hours spent working increases, the amount of time spent on video games decreases.

Answers

Answer:

D

Step-by-step explanation:

I got it right on edg 2020

Answer:

d

Step-by-step explanation:

I need help ASAP. Is it A B C or D???

Answers

Can you zoom in more ?

The alphabet has been playing us this whole time!
ABCDEFGHIJKLMNOPQRSTUVWXYZ

ABCDEFG-HI-JK-LMNO-PQRSTUVWXYZ
Hi! Jk! Lmno (Laughing my nose off!)

Answers

Answer:

ABCDEFGHIJKLMNOPQRSTUVWXYZ i get it

Step-by-step explanation:

wahahahahahhahaha....

that's so funny l m a o....

I never noticed this....ahahahahahaha

ima share this with my friend lol...

thanks for this....ahahaha

have a great day :)

seriously, that's funny!

Please help me im confused

Answers

78 goes to the first bosnian
The two top rectangles are 3 and 81 and the middle one on the bottom is 25

You place a 16 foot ladder against a building. The angle that the ladder forms with
the ground is 60 degrees. How far from the base of the building is the bottom of
the ladder? round to the nearest foot.

Answers

Answer:The base of the ladder should be placed so that it is one foot away from the building for every four feet of hight to where the ladder rests against the building. This is known as the 4 to 1 rule.

Step-by-step explanation:

Price-club sells a 12-ounce box of crackers for $2.59 and Shop Mart sells a 1-pound box of crackers for $4.68. The unit price at Price-Club is $ per ounce, and the unit price at Shop Mart is $ per ounce.

Answers

Answer:

$0.216 and $0.293

Step-by-step explanation:

Given,

Price club sells 12 ounce box = $2.59

Shop mart sells a 1 pound box = $ 4.68.

We have to find the unit price at Price club and Shop mart.

We know that 1 Pound = 16 ounce

Unit price at Price-club = [tex]\dfrac{2.59}{12}[/tex]

                                      = $0.216

Unit price at Shop Mart= [tex]\dfrac{4.68}{16}[/tex]

                                      = $0.293

It's actually [tex]1 \frac{1}{2}[/tex] pounds, not 1 pound.

because I got this question too. On odysse.yware.

Answer:

0.21 and 0.19

Step-by-step explanation:

It's simple, just divide it.

Divide 2.59 by 12 and divide 4.68. Then round the answers to the closest number in the choices. That's your answer buddy!

A must-have for any thrill seeker is a drop tower ride. The Precipice Plummet will stand 420 feet tall. The scale in your architectural diagrams is 1":40'. How tall will your drawing of Precipice Plummet be in inches? (do not include units in your answer, just the number

Answers

The answer is 10.5, but don't put 10.5 if it's just asking for the number and not the unit only put (10)!!!

I GIVE BRAINIEST

Can someone help me with question number two.

Using the first graph.

Just in case you can’t see the question is for number two how long does it take the plane to reach its maximum altitude.

Answers

I can’t read the numbers but when the graph flattens out at the top. There is two points there it’s the first point

What is the decimal equivalent of 1/5?

Answers

Answer:

.2

Step-by-step explanation:

Answer:

.20

Step-by-step explanation:

1 divided by 5 is .20

Olivia has a shoe box in the shape of a rectangular prism. She decorates 4 faces of the box,
leaving the top and the bottom without decorations. The unshaded parts of the model and
the diagram below show the parts that she decorates. What is the total area that Olivia
decorates?

5 in.
11 in.
8 in

190 square inches
440 square inches
366 square inches
256 square inches

Answers

Taking the test rn, it’s 190 square inches.

Found the answer on another site. Worked fine, hope that helps

Answer:

440

Step-by-step explanation:

I HAVE I READY TOO AND IT’S KILLING ME

PLS HELP MEEEEEEE IM CRYING RN IM GONNA FAIL

Answers

1 and 3 are proportional.
2 and 4 not proportional.

For it to be proportional, y = kx, where k is a constant.

For 1, y = 2x
For 3, y = -3x

So those are proportional

Select the correct answer.
Which graph has a domain of x
> -3

Answers

Answer:

the answer is actually c.

Step-by-step explanation:

I took the test and you would want the line to be going to the greater value of -3 because x is greater than -3.

Hope this helps :)

Answer:

the answer is c

Step-by-step explanation:

i took the test and got it right.

Which expression represents (−21−−−−√5)6 in rational exponent form? (−21)6/5 −215/6 (65)−21 (56)−21

Answers

Answer:

[tex](-21)^\frac{6}{5}[/tex]

Step-by-step explanation:

Which expression represents [⁵√(−21)]⁶ in rational exponent form?

Solution:

Rational numbers are numbers which can be expressed as fractions in the form a / b, where a, b are integers and b is not equal to zero.

A rational exponent is an exponent that is a fraction. For example √2 = [tex]2^\frac{1}{2}[/tex].

When expressing a number in rational exponent form, the numerator of the fractional exponent refers to a normal power, but the denominator refers to the root.

[tex][\sqrt[5]{(-21)}]^6 = (-21)^\frac{6}{5}[/tex]

14. Mrs. Buchanan is planning marching routines for the school band. The band has 36 members. Band members can march in any number of rows as long as each row has the same number of members. The marching path, however, limits members to 6 per row.

Answers

Question:

Make a list of the different arrangements that Mrs. Buchanan could use.

Answer:

[tex](x,y) = \{(1,36),(2,18),(3,12),(4,9),(6,6)\}[/tex]

Step-by-step explanation:

Given

[tex]Members = 36[/tex]

[tex]Rows\ Limit = 6[/tex]

Represent the rows with x and the column, y.

This means that:

[tex]x * y = 36[/tex]

Make y the subject:

[tex]y = \frac{36}{x}[/tex]

The list is then generated as follows:

When x = 6.

[tex]y = \frac{36}{6} = 6[/tex]

[tex](x,y) = (6,6)[/tex]

When x = 5

[tex]y = \frac{36}{5} = 7.2[/tex]

This result can not be use because the result of the number of columns must be an integer

When x = 4

[tex]y = \frac{36}{4} = 9[/tex]

[tex](x,y) = (4,9)[/tex]

When x = 3

[tex]y = \frac{36}{3} = 12[/tex]

[tex](x,y) = (3,12)[/tex]

When x = 2

[tex]y = \frac{36}{2} = 18[/tex]

[tex](x,y) = (2,18)[/tex]

When x = 1

[tex]y = \frac{36}{1} = 36[/tex]

[tex](x,y) =(1,36)[/tex]

So, the possible list is:

[tex](x,y) = \{(1,36),(2,18),(3,12),(4,9),(6,6)\}[/tex]

URGENT!!! 30 points!
What is the x-coordinate of the point that can be plotted on the graph between (6, 2) and (12, 4) that is part of this set of equivalent ratios? Choose the point which has integer values for x and y.

On a coordinate plane, the points (3, 1), (6, 2), and (12, 4) are plotted.

Answers

Answer:

Lol its 8

Step-by-step explanation:

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