explain why n(n-1) must be an even number

Answers

Answer 1
Whether n is an even or odd number, you will always have an even number and an odd number multiplying each other. An even number times an odd number is always an even number.

Related Questions

There are 35 students in a drama club two out of every five boys in the club are boys how much diamonds in the club are boys

Answers

Given:

Number of students = 35

Two out of every five boys in the club are boys.

To find:

The number of students in the club that are boys.

Solution:

Two out of every five boys in the club are boys. It means, the ratio of boys to the total number of student is 2:5.

Let the number of boys be 2x and number of students be 5x.

According to the question,

[tex]5x=35[/tex]

[tex]x=7[/tex]

Now, the number of boys is

[tex]2x=2(7)[/tex]

[tex]2x=14[/tex]

Therefore, 14 students in the club are boys.

Help?...
1/3(-3) + 13

Answers

Answer: 12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

1/3(-3)=-1

-1+13=12

Aurora has eating 3 out of the 10 treats I gave her. What percent of treats did she eat?

Answers

Aurora ate 30% of the treats that were given to her.

10 - 3 = 7
70% not eaten
30% eaten

Does anyone know the correct choice for this question? If its correct ill mark you as the best answer choice!

Answers

Answer:

The answer is B

Step-by-step explanation:

Plug in all the answer choices

A would be -2/3= -12

B would be -12= -12

C would be -36= -12

B would be 12= -12

here is a better pic​

Answers

Answer:

i

Step-by-step explanation:

(Grade6math) Can somebody plz answer these questions correct in simplify form.. cuz idk how to answer it like that..still learning.

WILL MARK BRAINLIEST!!!!!

Answers

Answer:

1. 1, 2. -15, 3. -18, 4. -1, 5. -11. 6. 22

Step-by-step explanation:

REMEMBER: If a positive multiplies a negative, it will result in a negative. If a negative multiplies a negative, it will resolve as a positive

1. 7 - 2 x 3 = 1

First, multiply 2 and 3 to get 6

7 - 6

Subtract the numbers to get 1

2. -8 + 14 / (-2) = -15

First, do 14 divided by -2 to get -7

-8 + -7

Add the two numbers to get -15

3. -6 + (-3) x 4 = -18

First, multiply -3 and 4 to get -12

-6 + -12

Add the two numbers together to get -18

4. 48 / (-12) +3 = -1

Divide 48 and -12 to get -4

-4 + 3

Add the two numbers to get -1

5. 16 / (-2) -3 = -11

Divide 16 by -2 to get -8

-8 - 3 = -8 + (-3)

Add the two numbers together to get -11

6. -11 x 4 / (-2) = 22

Work the problem from left to right, start with -11 x 4 to get -44

-44 / -2

Divide the equation to get 22

I NEED THE ANSWER RIGHT NOWWWW
Hailey is shopping at a department store during a 20% off everything sale. She also has a coupon for $5.00 off the sale amount. Hailey wants to keep her total under $65.00 before tax, so she creates this inequality:
0.80x − $5.00 ≤ $65.00.

Which inequality represents all possible solutions for x?

A. x ≤ $75.00
B. x ≤ $76.25
C. x ≤ $86.25
D. x ≤ $87.50

Answers

Answer:

All of them would be under $65

Answer:

D

Step-by-step explanation:

2) The Rodriguez family went to dinner at Pasta Palace. Mr. Rodriguez ordered a
meal for $16.25; Mrs. Rodriguez ordered a meal for $19.50; the three children
ordered individual pizzas for $6.99 each. The tax rate is 8.75% and the family
wants to leave an 18% tip applied after the tax. How do they leave in all
including tax and tip? Helpppp pleaseee!!! I will give brainlest!!!! With explanation

Answers

Answer: $72.78

Explanation:
$16.25+$19.50+(6.99*3)
=$56.72 in total without tax or tip
56.72*0.0875
=(4.963 but in money form)$4.96 is the how much tax was
56.72+4.96
=$61.68 is the total amount including tax
61.68*.18
=$11.10 is how much tip was
61.68+11.10
= $72.78 is the total amount including tax and tip

PLEASE FAST!!: (math related, view picture) Liner equation: y= 3x-4
Somebody please draw/show how they did the map so i can do it. i need help!!

Answers

Answer:

Step-by-step explanation:

y =  3x - 4

x = 0,  y = 3*0 - 4

          y = -4

(0 , -4)

x = 1 ,    y = 3*1 - 4

            y = 3 - 4

            y = -1

(1 , -1)

x = 2  , y = 3*2 - 4

           y = 6 - 4

           y = 2

(2 , 2)

Now mark these points (0 , -4) , (1 , -1) & (2 , 2) in the graph and join the points

Select two ratios that are equivalent to 7:10
Choose 2 answers:

(Choice A)
A
21:30

(Choice B)
B
17:20

(Choice C)
C
10:13

(Choice D)
D
26:40

(Choice E)
E
35:50

Answers

Answer:

b

Step-by-step explanation:

I think is choice A and choice E

I need this math equation simplified.

Answers

Answer:

80 hope this helps!

Step-by-step explanation:

5x^2 . 5x^2 . 5x^2 = 125^6
So the answer is D

How do you do these? Would they equal 180?

Answers

Answer:

D

Step-by-step explanation:

draw a line c on point3 and // to a and b, then angle3 will be 32+41 will be 73

ans is d “73”

extend the line from a to b so that it forms a “z”. then we can use alt angles. lastly use exterior angle of triangle

come on man wont you answer a poor sinners question SERIOUSLY HELP

Answers

Step-by-step explanation:

1000 is the answer man you want it right

7 cm
4 cm
8 cm
what is the area?

Answers

what shape is this

I cant answer it if there's no shape in the question

7cm

4cm

8cm

Aare=?

soln

a+b+c

7cm+4cm+8cm

A=19cm

Mike's truck engine holds 1 and 1/4 gallons of oil if there are 3 quarts of oil in the engine now how many more quarts of oil does Mike need to fill the engine to capacity

Answers

Answer:

2 more quarts of oil is needed to fill

the engine to capacity

Step-by-step explanation:

Here, we want to calculate how many more quarts of oil is required to fill the engine to capacity

We have to convert the capacity to quarts

Mathematically, 1 gallon = 4 quarts

So 1 1/4 gallon will be 5/4 * 4 = 5 quarts

So the number of quarts needed to fill the engine to capacity will be 5 quarts - 3 quarts = 2 quarts

Write y = 2x + 8 in standard form.​

Answers

Answer:

2x - y = -8

:)

En un día de temporal de lluvia el meteorólogo dijo en las noticias que la probabilidad de que lloviera ese día era del 70%. ¿Qué significa ese dato?

Answers

Answer:

Vamos a definir:

100% probabilidad de lluvia = Es seguro que ese día va a llover.

0% probabilidad de lluvia = Es seguro que ese día no va a llover.

Ahora, los valores intermedios admiten una dualidad, es decir, es posible que llueva o que no.

Particularmente en el caso del 70% significa que:

Si tenemos un dado de 10 caras, con los números {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

Y lo tiráramos, los resultados {1, 2, 3, 4, 5, 6, 7} indicarían que llueve.

Los resultados {8, 9, 10} indicarían que no llueve.

Entonces es mas probable que llueva, pero la probabilidad de que no llueva no es despreciable.

A firefighter has a mass of 80 kg. He is at the top of a ladder 15 m from the ground. What is the
firefighter's potential energy?


Please help meeee ASAP!!! It’s science MATH!

Answers

Answer:

Step-by-step explanation:

The formula for solving this is

P=mgh

M=80kg

h=15m

g=9.8 (acceleration due to gravity constant)

P=?

Then we should substitute our values

P=80×9.8×15

Potential energy=11760

Estimate what the value of x could be.​

Answers

Answer:

where is the question?

Step-by-step explanation:

you just said to estimate the value of what x can be.


what is the inverse of the function

Answers

Answer:

f⁻¹(x) = x+2 / 3

Step-by-step explanation:

Given function is:

f(x) = 3x-2

We have to find the inverse of the given function.

Put y = f(x)  in given function, we have

y =3x-2

Adding 2 to both sides of the above equation we have

y+2 = 3x-2+2

y+2 = 3x

Dividing by 3 to both sides of the above equation, we have

y+2 / 3 = 3x / 3

y+2 / 3 = x

Put x = f⁻¹(y) in the above equation we have

y+2 / 3 = f⁻¹(y)

Swapping equation we have

f⁻¹(y) = y+2 / 3

Replace y with x we have

f⁻¹(x) = x+2 / 3   which is the answer.

The distance a baseball travels when a player hits the ball varies directly with the speed with which the player swings the bat. The graph below shows the distances a baseball travels (in feet) and the speed of the swing (in miles per hour). A graph titled Baseball Speed has speed of swing (in miles per hour) on the x-axis, and distance (in feet) on the y-axis. A line goes through points (0, 0), (40, 200), (60, 300). Based on the graph, which relationship exists between the speed of the swing and the distance the ball travels?

Answers

The distance a baseball travels when a player hits the ball varies directly with the speed with which the player swings the bat. The graph below shows the distances a baseball travels (in feet) and the speed of the swing (in miles per hour). A graph titled Baseball Speed has speed of swing (in miles per hour) on the x-axis, and distance (in feet) on the y-axis. A line goes through points (0, 0), (40, 200), (60, 300). Based on the graph, which relationship exists between the speed of the swing and the distance the ball travels?

Answer: the realtionship between exists is (50, 145)

Answer:

The distance is 5 times the swing speed. or c

Step-by-step explanation:

Help with these 2 pls!

Answers

Answer:

2: option four

3: option four

Step-by-step explanation:

they are both option four

please help me please

Answers

Answer:

11

Step-by-step explanation:

its number 2

please awnser thank ​

Answers

Andy since 78/15 is more then 2 and more then 4.8

Christy earned $41.25 for selling 3 birdhouses at a craft market. The equation y=13.75x can be used to represent this situation. What is the constant of proportionality? Express your answer in decimal form.

Answers

k=y/x

k=68.75/5 (you can pick any number by multiplying x by 13.75)

k=13.75

hope this helps

A restaurant uses 3 3 pounds of pasta for a party of 14 14 people. If they are cooking pasta for a party of 56 56 people, what should they do? CLEAR CHECK Use 42 42 more pounds of pasta. Use twice as much pasta. Use 12 12 more pounds of pasta. Use 4 4 times as much pas

Answers

Answer:

Use 12 more pounds of pasta.

Step-by-step explanation:

A restaurant uses 3 pounds of pasta for a party of 14 people. If they are cooking pasta for a party of 56 people, what should they do?

Hence, we have:

14 people = 3 pounds of pasta

56 people = x

Cross Multiply

14 × x = 56 × 3

14x = 56 × 3

x = 56 × 3/14

x = 12 pounds of pasta

Hence, if they are cooking for 56 people they should use 12 pounds of pasta

Which of Anne's actions demonstrates her changing sense of self? She is bored with her childish pranks. She wants to stop bickering with her mother She has identified her good side and is trying to let it show. She is interested in developing a friendship with Peter​

Answers

Answer:

She has identified her good side and is trying to let it show.

Step-by-step explanation:

I did this already so I know it right.

Answer:

She has identified her good side and is trying to let it show.

Step-by-step explanation:

Haha, I just finished this assignment.

Hii!! I need help finding a Distributive property equation so that x=8 Thanks! :)

Answers

Example: 8(1x+0) = 8x

4.
Mrs. Wagner tracked the weight of a baby kitten and recorded it in the table below.



Based on the information in the table, how much weight does the kitten gain per month?


6.5 pounds

2 pounds

1.5 pounds

3.5 pounds

Answers

Answer:

1.5

Step-by-step explanation:

aziel left to play basketball at 3:30 p.m . he came home at 5:00 p.m . How long was he gone ?plz show ur working out and thank u ​

Answers

Answer:

1hr 30mins

Step-by-step explanation:

if u do

3:30-4:30 its 1 hr

4:40-5:00 is half an hour (30mins)

one hour and 30 minutes
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Compare the numbers of chromosomes present in the offspring with the numbers of chromosomes present in the parent organism in the process of the cloning? How do we conjugate a verb? How does this compare to English? Read these sentences from the selection.This means that attempting to solve one problem can trigger or affect another problem. (paragraph 2)They end up considering deep moral questions in the process andthinking critically about the possible outcomes of their decisions.(paragraph 4)These sentences help the reader understand that playing the World Peace Gamecan be an intense experience for players as they consider theimpact of their choicesoften leads players to become discouraged by the results of theirchoicescan be frustrating to many of the players because of itscomplexityoften results in players changing what they value in life plz tell formula of Cot plz fully explain List out the differences in the way global communities were formed beforeand after the advent of the Internet and social media. How do you think the Internet and social media will impact globalcommunities in the next five years? What has been the impact of the Internet and social media on individualsand on society? The sum of two numbers is 9. Their difference is 21 11)If y varies directly as and y= 10 when x = 2, then what is the value of y when x = 4?A)2.5B)20C)40D)80 Why would Mansa Musa choose a route to Mecca that took him through Taghazai I'll give brainlist or whatever I jut need this answer -_-What was the importance and future significance of the American Revolution for other Nations around the world? I really need some help with this Write a Python program that calculates the product of all odd numbers between 1 and 1111, using the for loop and the range function. On December 28, 2021, Tristar Communications sold 10 units of its new satellite uplink system to various customers for $25,000 each. The terms of each sale were 1/10, n/30. Tristar uses the net method to account for sales discounts.In what year will income before tax be affected by discounts, assuming that all customers paid the net-of-discount amount on January 6, 2022? Global warming is causing the ocean toget warmer, resulting in: what is the ratio 4:6 Guess the carHint**uncommon** Write the dissolution reaction for ammonium phosphate in water. Be sure to specify the state of each reactant and product. What is $82.51 minus $1? Based on the diagram to the right,what will happen to the motion of the box?Select two that apply.(Choose 2)1.The box will move to the West.2.The box will move to the East.3.The box will remain at rest.4.The velocity of the box will change. Which of the following is NOT a social push factor for immigration?A. Lower standard of living B. Lack of health careC. Political persecution D. Religious tolerance Which detail about the White Queen from Through The Looking-Glass by Lewis Carroll reveals that she is not very regal? A. Well, yes, if you call that a-dressing, the Queen said. It isn't MY notion of the thing, at all. B. Every single thing's crooked, Alice thought to herself, and she's all over pins!may I put your shawl straight for you? she added aloud. C. I don't know what's the matter with it! the Queen said, in a melancholy voice. It's out of temper, I think. D. You couldn't have it if you DID want it, the Queen said. The rule is, jam to-morrow and jam yesterdaybut never jam to-day.