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3 years ago

PLEASE HELP ME MATCH THEM!! I’m in need please. Match each value with its formula ABC.

Mathematics

2 answers:

chubhunter [2.5K]3 years ago

6 0

Answer:

Step-by-step explanation:

Given are some formulae on left side and answers on right side

We have to match them.

WE can use cosine formula for triangles

$1) \frac{a^2+b^2-c^2}{2ab} =Cos C\\2) \frac{a^2+c^2-b^2}{2ac} =Cos B\\3) \frac{c^2+b^2-a^2}{2bc} =Cos A\\\4) \sqrt{b^2+c^2-2bc cosA} =a\\5) \sqrt{a^2+c^2-2ac cosB} =b\\6)\sqrt{a^2+b^2-2ab cosC} =c$

Thus matchings are shown above for all.

dezoksy [38]3 years ago

4 0

Answers are like this: 1)Cos C 2)Cos B 3)Cos A 4)a 5)b 6)c all of them are different type of writing cosines law , just this.

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SOMEONE PLEASE HELP ME WITH THE REPRESENTATIVE ION QUESTION I JUST ASKED PLEASE I'LL GIVE BRAINLIEST TO WHOEVER IS RIGHT

lilavasa [31]

Answer:

Step-by-step explanation:

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2 years ago

Matthew's dad hired him to paint 6 wooden patio chairs for $125. It takes him 9 hours to paint all of the chairs. If it takes th

frozen [14]

Given:

Matthew's dad hired him to paint 6 wooden patio chairs for $125.

Time taken by him to paint all of the chairs = 9 hours.

It takes the same amount of time to paint each chair.

To find:

The fraction of an hour does it take Matthew to paint one chair

Solution:

Total time = 9 hours

Total number of chairs = 6

Now, time taken by Matthew to paint one chair is

$\dfrac{\text{Total time}}{\text{Total number of chairs}}=\dfrac{9}{6}$

$\dfrac{\text{Total time}}{\text{Total number of chairs}}=\dfrac{3}{2}$

Therefore, Mattew takes $\dfrac{3}{2}$ of an hour to paint one chair.

Thinking with a model: On dividing the total time by total number of chairs we get time taken by Mattew (in hours) to paint one chair. So, the result represents the fraction of an hour taken by Matthew to paint one chair.

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3 years ago

Explain how the pythagorean theorem is used to derive the distance formula

kenny6666 [7]

Answer:

In the Pythagorean Theorem, a right triangles hypotenuse is found by a^2 +b^2= c^2. The distance formula is basically the same thing. With two points, a right triangle can be formed and the slop would be the hypotenuse. That's where the distance formula comes from

Step-by-step explanation:

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3 years ago

I NEED SOME HELP!!!!!! PLEASE!!!!!!!

zhuklara [117]

The greatest common factor is the biggest thing that they all share... If we look at it they all have 4 as their coefficients so you can take that out but they also have a squared so you can take that out too so the GCF if 4a squared... but No x because one of them doesn't have it... all of them have to have it in common.

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3 years ago

1. add negative fraction with positive fraction

jok3333 [9.3K]

Given parameters:

1. $-\frac{7}{8} + \frac{1}{4}$