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3 years ago

M2-n2 factorization plz

Mathematics

1 answer:

Alina [70]3 years ago

8 0

Answer:

(m+n)(m-n)

Step-by-step explanation:

formula: x^2 - y^2 = (x+y)(x-y)

add m and n to x and y to get

m^2 - n^2

then the formula says insert the m and n into the formula answer of (x+y)(x-y) to get our answer of

(m+n)(m-n)

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estimate each sum or difference to the nearest whole numbers. then calculate the exact sum or difference....58.02-15.27-3.76

omeli [17]

Answer:

38.99

Step-by-step explanation:

58.02 - 15.27 = 42.75

42.75 - 3.76 = 38.99

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3 years ago

write the equation of the line that passes through the points (1,6) and (9,-8). put your answer in fully reduced slope form, unl

Musya8 [376]

Answer:

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Step-by-step explanation:

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3 years ago

An aged merchant of Baghdad was much respected by all who knew him. He had three sons, and it was a rule of his life to treat th

IRINA_888 [86]

Answer:

Son number 1 has 3 full, 5 half, and 3 empty barrels.

Son number 2 has 4 full, 3 half and 4 empty barrels.

Son number 3 has 3 full, 5 half, and 3 empty barrels.

Step-by-step explanation:

Let's first calculate the amount of honey we have (in barrel unit):

10*1 + 13*0.5 + 10*0 = 16.5 honey units

As the father wants to split it equally between the 3 sons, each of them should get 16.5 / 3 = 5.5 honey units

And since we have 33 barrels in total which must be split equally between the sons, each should receive 33 / 3 = 11 barrels.

Since the sons are identical, let's start by splitting each of the barrels equally. We can rearrange later to match all criteria:

3 full, 4 half, and 3 empty for each of the sons, makes it 10 barrels and 3*1 + 4*0.5 + 3*0 = 5 honey unit

For 3 sons there would be 1 full, 1 half and 1 empty barrels left

We can give 1 half barrel to the 1st son, now he has 11 barrels and 5.5 units of honey. He's good to go. we have 1 full, 1 and 1 empty barrels left.

Give the full barrel to the 2nd son, now he has 11 barrels, but 6 unit of honey. So we trade the empty barrel for a half barrel of his. So he would have 4 full, 3 half and 4 empty barrels. That accounts for 11 barrels, 4*1 + 3*0.5 + 3*0 = 5.5 barrels.

We are left with 1 half barrel, that can be given to the 3rd son, now he would have 3 full, 5 half, and 3 empty barrels. That accounts for 11 barrels and 3*1 + 5*0.5 + 3*0 = 5.5 unit of honey.

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3 years ago

If a toy is 420$ and it is 69% off, how much is it

salantis [7]

Answer:

130.2

Step-by-step explanation:

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3 years ago

Read 2 more answers

beks73 [17]

The commutative property of addition means the order of the addends doesn't matter; we get the same sum. In symbols

$a+b = b+a$

<span>11 + 7 = 7 + 11, choice B, is a good illustration of commutativity.

The next part asks us to use the commutative property. Looking at the choices, we see it's not the commutative property of addition we're to use, it's the commutative property of multiplication. Let's write that generally first:

</span> $ab = ba$

Applying that, <span>(4 + 7) * 3 = 3*(4+7), again choice B.
</span>

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3 years ago