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3 years ago

What is the perimeter of triangle DEF

Mathematics

2 answers:

LuckyWell [14K]3 years ago

7 0

Remember that A squared plus B squared equals C squared.

Since sides F_D and D_E are both 3, the answer cannot be 4.2 or 2.4.

SO basically you just add 3 + 3 = (The side F_E, which you can get by putting numbers in the formula), you should get your answer.

3² + 3² = Line EF²
9 + 9 = Line EF²
18 = Line EF²
√18

You get the idea. Hope this helps!

frozen [14]3 years ago

3 0

Answer:

i took this quiz and the answer is 10.2 units good luck

Step-by-step explanation:

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Step-by-step explanation:

Of the two lines are parallel then x = 53°

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Samantha spent 40 minutes on homework. Sixty percent of that time was spent on language arts.how many minutes were spent on lang

yan [13]

If you would like to know how many minutes were spent on language arts, you can calculate this using the following steps:

60% of 40 minutes = 60% * 40 = 60/100 * 40 = 24 minutes

The correct result would be: 24 minutes were spent on language arts.

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3 years ago

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Eric and Carly each made a bowl of punch. Carly used 5 times as much lemonade as Eric did. If Eric used 1/4 of a

Viktor [21]

Answer:

carly used 1 1/4 cups of lemonade

Step-by-step explanation:

I think that is simplified

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2 years ago

Select the correct answer.

andrew-mc [135]

Answer:

$v=\sqrt{\frac{E}{m}}$

Step-by-step explanation:

The formula is given as:

$E=mv^2$

We need to solve this formula for v, that means that v to one side and let it be solved in terms of the other variables (E and m). First, we isolate v:

$E=mv^2\\\frac{E}{m}=\frac{mv^2}{m}\\\frac{E}{m}=v^2$

To isolate v, and eliminate the "square", we need to take square roots of both sides, that will give us v in terms of the other variables:

$\frac{E}{m}=v^2\\\sqrt{\frac{E}{m}}=\sqrt{v^2}\\\sqrt{\frac{E}{m}}=v$

Putting v to left side (convention), we finally have:

$v=\sqrt{\frac{E}{m}}$

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3 years ago