3 years ago

Helppp pls, I cant seem to place them..

Mathematics

1 answer:

aleksandrvk [35]3 years ago

3 0

Subtract 5x from both sides, 7x+2=-26, subtract 2 from both sides, 7x=-28, divide both sides by 7, x=-4

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What does Dilation mean

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hichkok12 [17]

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3 years ago

30-1 divided by 1/25

Alexxx [7]

Answer:

725

Step-by-step explanation:

30 - 1 = 29

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2 years ago

Can someone help me with these worksheets pls

Virty [35]

Answer:

Count up the side so for 10 count the Arrow going up for the 5 count to the side but like for example.

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3 years ago

(8m-3n)^2 - (4m+3n)^2

natulia [17]

Answer:

$48m^2-72mn$

Step-by-step explanation:

We need to solve $(8m-3n)^2 - (4m+3n)^2$

We know that,

$(a+b)^2=a^2+b^2+2ab\\\\(a-b)^2=a^2+b^2-2ab$

Using the above formula,

$(8m-3n)^2 - (4m+3n)^2=(8m)^2+(3n)^2-2(8m)(3n)-[(4m)^2+(3n)^2+2(4m)(3n)]\\\\=64m^2+9n^2-48mn-(16m^2+9n^2+24mn)\\\\=64m^2+9n^2-48mn-16m^2-9n^2-24mn\\\\=48m^2-48mn-24mn\\\\=48m^2-72mn$

So, the final answer is $48m^2-72mn$ .

4 0

3 years ago