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2 years ago

1×9=9 is a true statement which multiplication property is this example of? identity distributive associative communative

Mathematics

2 answers:

natta225 [31]2 years ago

7 0

I would say that this is associative property please let me know if its right, but i'm really positive i'm right.

olga2289 [7]2 years ago

5 0

Identity, which basically is any number times 1 will equal that number :)

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Mrs. Smith's class is working on a variety of science experiments. Each

SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

If there are <em>n</em> students, then the number of pairs is $\frac{n(n-1)}{2}$ .

With 12 students, $\frac{12(12-1)}{2} = \frac{132}{2}=66$ pairs can be formed.

The reason the formula works is this: Each of the 12 students can be paired with 11 other students (no student is paired with him/her self). But counting 12 x 11 = 132 counts each pair <u>twice</u>. Example: student A can be paired with student B,..., student B can be paired with student A. The pair was counted two times.

See the attached image that shows pairings of 5 students. There are

5(5 - 1)/2 = 5(4)/2 = 10 pairs.

8 0

2 years ago

To determine whether 30 horses can be put into 7 stalls; so that in every stall there may be, either a single horse, or an odd n

algol [13]

Answer: No solutions

If i put any combo of horses of single or odd, always an even number at last stall.

3 0

2 years ago

Helpppp meeeee plzzzz

My name is Ann [436]

Answer:

Our eyes are sensitive to all electromagnet waves with a wavelength longer than infrared

Step-by-step explanation:

I hope this helps :) good luck!

4 0

2 years ago

Solve the equation √x-6 +2=6

Dovator [93]

Answer:

x = 22

Step-by-step explanation:

$\sqrt{x-6}$ + 2 = 6 ( subtract 2 from both sides )

$\sqrt{x-6}$ = 4 ( square both sides to clear the radical )

x - 6 = 4² = 16 ( add 6 to both sides )

x = 22

8 0

1 year ago

One of my students got 95 and 98 for the two Principal tests and for the final test. What is the average of her three tests? Wha

timofeeve [1]

97% because that is the average of the three test scores.

3 0

2 years ago