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

"John has 12 cans of dog food. He has two dogs and he gives each dog 2/3 of a can of dog foo each day. Does he have enough dog food to last one week? "

In an isosceles triangle, the length of the base is half of the length of a leg. The perimeter of this triangle is 50cm. Find the lengths of all sides. Only ans

helppppppp!!! 2v+18=16-4 (v+7)

(3x - 1)(ax + b) = 12x² - 19x + c Work out the values of a, b and c.

Select the correct term to complete the statement

A spelunker explores a new underground cave. He descends into the cave at a rate of 4 feet per minute. What is the change in position of the spelunker after 50

can anyone give a good title for racism

Before u can open and edit a file, you need to zip it, T/F

the current through a 12ohm resistive circuit when 24 volts is applied

||25 POINTS WILL GIVE BRAINLIEST|| Choose the equation that is modeled on the numberline. A −7+(−1)=−6-7+(-1)=-6−7+(−1)=−6 B −1+(−6) =−7-1+(-6)\ =-7−1+(−6) =−7