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2 years ago

12

NEED HELP ASAP!! can someone please explain this to me!

1 answer:

34kurt2 years ago

7 0

Answer:

BG = 3; GE = 6

Step-by-step explanation:

The centroid of a triangle divides the median into two parts in the ratio 1 : 2. That is, the short segment is 1/3 the length of the median, and the long segment is 2/3 the length of the median.

BG = 1/3·BE = 9/3 = 3

GE = 2/3·BE = 2/3·9 = 18/3 = 6

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

natulia [17]

Answer:

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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 $48m^2-72mn$ .

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3 years ago

Read 2 more answers

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Step-by-step explanation:

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