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3 years ago

Which property is shown in the matrix addition below?

Mathematics

2 answers:

Liono4ka [1.6K]3 years ago

7 0

In the given sum of matrices we need to add 0 to 0.

-5.5 to 5.5.

6 to -6

19.4 to -19.4

0 to 0 and

0 to 0.

<em>We can see in the sums of -5.5 to 5.5, 6 to -6 and 19.4 to -19.4 we have equal numbers in opposite in signs.</em>

<em>Those are additive inverses of each other.</em>

Therefore, we need to apply " Additive inverse property".

<h3>In the given option we would choose 3rd option " inverse property".</h3>

swat323 years ago

7 0

Answer:

C) inverse property is correct

Step-by-step explanation:

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Answer:

1200 in^2

Step-by-step explanation:

SA = 2B + Ph

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3 years ago

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3 years ago

Write 25*24*23*22 as a quotient of factorials and as a permutation

Kipish [7]

Answer:

(a)

$25\times 24\times 23\times 22=\frac{25!}{21!}$

(b)

$25\times 24\times 23\times 22=P(25,4)$

Step-by-step explanation:

Quotient of factorials:

we are given

$25\times 24\times 23\times 22$

we can multiply top and bottom term by 21!

$25\times 24\times 23\times 22=\frac{25\times 24\times 23\times 22\times 21!}{21!}$

we can write as

$25\times 24\times 23\times 22=\frac{25!}{21!}$

As a permutation:

we know permutation formula

$P(n,r)=\frac{n!}{(n-r)!}$

now, we can compare and find 'n' and 'r'

$n=25$

$n-r=21$

we can plug back n=25

$25-r=21$

$r=4$

so, we can write

$25\times 24\times 23\times 22=P(25,4)$

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3 years ago

You are writing a research paper on plant cells. You got 48,600,000 results on the online search. How do you write 48,600,000 in

never [62]

Place a decimal point between the first two digits (4 and 8). Erase the commas and the 0s. So you'll have 4.86 left over after you've done that erasing.

Now ask yourself: "how many places to the right must I move the decimal to get 4.86 to turn back to 48,600,000?"

That would be 7 places to the right. That 7 is the exponent over the 10

<h3>Therefore, the answer is 4.86 * 10^7</h3>

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Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers