3 years ago

Which term describes the point where three medians of a triangle intersect

Mathematics

2 answers:

Keith_Richards [23]3 years ago

7 0

centriod hope this will help

Hitman42 [59]3 years ago

6 0

The correct answer is centriod

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4 years ago

cable has 2 1/5 yard of rope. he uses 3/4 of the rope to make a dog leash. which expression can be used to represent 3/4 of 21/5

Greeley [361]

Answer:

Step-by-step explanation:

Thank me later

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3 years ago

What is the domain and range of the relation shown in the table?

zysi [14]

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4 years ago

Write the equation of the line with the slope =5 and that goes through point (3,-5)

viva [34]

Answer:

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3 years ago

Please teach me on how to answer this question. (addmath question)

arsen [322]

We know that $\overline{x}=8$ so:

$\overline{x}=8\\\\\\\dfrac{\sum\limits_{k=1}^7\,x_k}{7}=8\qquad|\cdot7\\\\\\ \boxed{\sum\limits_{k=1}^7\,x_k=56}$

We want to calculate:

$\sum\limits_{k=1}^7\,\big(2x_k-3\big)^2=\sum\limits_{k=1}^7\,\big(4x_k^2-12x_k+9\big)=\\\\\\=\sum\limits_{k=1}^7\,4x_k^2-\sum\limits_{k=1}^7\,\big12x_k+\sum\limits_{k=1}^7\,9=4\sum\limits_{k=1}^7\,x_k^2-12\sum\limits_{k=1}^7\,x_k+\sum\limits_{k=1}^7\,9=\\\\\\=4\cdot672-12\cdot56+7\cdot9=2688-672+63=\boxed{2079}$

5 0

3 years ago