shakirabreeding shakirabreeding

02-04-2018
Mathematics

contestada

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

The law of cosines a2b22abcosCc2 Find the value of 2abcosC class=

Respuesta :

dpokharnaotzjgn dpokharnaotzjgn

02-04-2018

A = 4
B = 3
C = 2

We need to find cos(C)

[tex]4 = 16 + 9 - 2(2)(3)(cos(C)) [/tex]
[tex]-21 = -12 * cos(C)[/tex]
[tex]cos (C)= 1.75[/tex]

The answer is [tex]2 * 3 * 4 * 1.75 [/tex] = 42

Answer Link

Otras preguntas

which accurately describes a tangent

What is the value of 6P6? A.1 B.36 C.720 D.46,656

What does el muslo mean?

what creates more friction aluminum foil, wax paper or plastic wrap

What is a sound wave?

What are the positive and negative aspects of a zoo or safari park?

How long does water evaporation take? What factors influence it?

The Earth has a radius of 6,400 kilometers. A satellite orbits the Earth at a distance of 12,800 kilometers from the center of the Earth. If the weight of the s

Can you explain 3x+4/5=7/10. Solve

Which of the following can fix nitrogen? Answer A.human industrial processes B.lightning C.certain bacterial species D.all of the above