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3 years ago

Which word BEST describes 3x, 5y, and z in the expression 3x − 5y + z?

Mathematics

1 answer:

zysi [14]3 years ago

6 0

A. terms is the best way to describe them

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Nikolai is taking a taxi to school. He has to

adoni [48]

7 because the first mile will be 3 dollars then if you add the rest of the miles it will be seven because you are adding four more miles

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3 years ago

M is the incenter of triangle ABC. Find the lengths of MD and DC. (Look at pic)

Deffense [45]

Answer:

Part 1) $MD=9\ units$

Part 2) $DC=12\ units$

Step-by-step explanation:

Step 1

Find the length of MD

we know that

The incenter is the intersection of the angle bisectors of the three vertices of the triangle. Is the point forming the origin of a circle inscribed inside the triangle

In this problem

$MD=ME=MF$ ------> is the radius of a circle inscribed inside the triangle

we have that

$MF=9\ units$

therefore

$ME=9\ units$

$MD=9\ units$

Step 2

Find the length of DC

we know that

In the right triangle MDC

Applying the Pythagoras theorem

$MC^{2} =MD^{2}+DC^{2}$

we have

$MD=9\ units$

$MC=15\ units$

substitute

$15^{2} =9^{2}+DC^{2}$

$DC^{2}=225-81$

$DC=\sqrt{144}\ units$

$DC=12\ units$

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3 years ago

Help me plssssss I suck at this

Alex73 [517]

Answer: 7

Step-by-step explanation:

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3 years ago

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sasha needs an average of 30 points to move to the next level in her competion . her scores in the first three events are 28, 35

salantis [7]

Sarah will need 27pts her lowest score

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3 years ago

Mrs. brook lacks 7 years from being 5 times as old as her son. 6 years from now she will lack 3 years from being 3 times as old

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