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velikii [3]
3 years ago
7

The law of cosines is a² + b² - 2abcosC = c². find the value of 2abcosC

Mathematics
2 answers:
taurus [48]3 years ago
7 0
\bf a^2+b^2-(2ab)cos(C)=c^2\implies a^2+b^2-c^2=(2ab)cos(C)
Elina [12.6K]3 years ago
3 0

Answer:

We need a diagram please

Step-by-step explanation:

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What is the solution to this equation?
VikaD [51]

Answer:

s = 32

Step-by-step explanation:

–5(s – 30) = –10

Divide each side by -5

–5/ -5(s – 30) = –10/-5

s - 30 = 2

Add 30 to each side

s-30+30 = 2+30

s = 32

4 0
3 years ago
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5. Kendra is making a histogram for the data
valentinak56 [21]

Answer:

The longest bar in her histogram is the Intervals 5-9 with the value of 5

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  Please have a look at the attached photo

My answer:

  • Intervals 0-4 : there are 2 results
  • Intervals 5-9 : there are 5 results
  • Intervals 10-14 : there are 4 results
  • Intervals 15-19 : there are 5 results

So the longest bar in her histogram is the Intervals 5-9 with the value of 5

Hope it will find you well.

8 0
3 years ago
What is the slope of the line?y−3=5(x−2)
Ksju [112]

Answer:

5

Step-by-step explanation:

[ y - 3 = 5(x - 2) ] is written in point slope form [ y - y1 = m(x - x1) ] where (x1, y1) = any given points and m = slope. Looking at the equation, m = 5, so that is the slope.

Best of Luck!

3 0
3 years ago
Two lines intersect (see image below)
klemol [59]

Answer:

c-24

a-156

Step-by-step explanation:

a=180-24( angles on s straight line)=156

c= 24 opposite angles

3 0
3 years ago
Write your answer in simplest radical form​
Svetach [21]

Answer:

9\sqrt{3}

Step-by-step explanation:

This is a 30-60-90 triangle.

It's good to remember this. The side length opposite to the 60 degree angle is always the base multiplied by \sqrt{3}

8 0
3 years ago
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