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viva [34]
3 years ago
9

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

Mathematics
1 answer:
sladkih [1.3K]3 years ago
3 0
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.
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PLEASE SOMEONE PLEASE HELP ME
ddd [48]

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Answer: Supplementary angles

Explanation:

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

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4 0
3 years ago
A shirt is $25.99 if the sales tax is 8.5% what will be the total cost of the shirt? Please help:)
tankabanditka [31]
Total=shirtcost+tax
shirtcost=100%
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round
total cost is
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7 0
4 years ago
Read 2 more answers
BRAINLIEST
Dima020 [189]

Answer:

1. 2.9

2. 51 inches

3. (if you can send a picture of the question, I can tell you an answer.

Step-by-step explanation:

for number 1:

You have to add the scores on the left and divide it by the total. What I did was multiply each number on the right with it's pair and added it up. I got 111. Afterwards,  I totalled the number of students (I got 38) and divided the scores by the number of students to get 2.9.

for number 2:

You do the same thing as number one but instead of multiplying pairs, you add the heights. I got 255 and then divided it by 5 total heights. I got 51 inches.

for number 3: I didn't get the graph to tell you the answer but I can tell you what everything means.

Symmetric means that both sides of the graph are equal and if you fold the graph in half horizontally, you should get the same shape.

Gaps are where you see blanks in the graph where the data gets cut off and then has stats again.

Cluster is when a huge amount of data is gathered in one area.

Peak is where the data (x-axis) reaches it's highest point (highest y-axis point).

Good luck and please give me Brainliest if you liked my answer!

6 0
3 years ago
Graph the image of the given triangle across the y axis
Morgarella [4.7K]
Check the picture below.

notice, it simply got mirrored over the vertical y-axis.

5 0
4 years ago
find two consecutive odd integers that 7 times the smaller integer is 61 more than 2 times the larger integer.
Aleks04 [339]

Answer:

x = 13     smaller integer

x + 2 = 15  the other integer

Step-by-step explanation:

x = the smaller integer

x + 2 = the next integer          

7(x) = 61 + 2(x + 2)

7x = 61 + 2x +4

5x = 61 + 4

5x  = 65

x = 13     smaller integer

x + 2 = 15  the other integer

8 0
3 years ago
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