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

Write a 5 paragraph essay about why u think Oreo are better than Chip Ahoy. hook the reader then at the end make a thesis statement.

What is the probability of NOT rolling a "5" on a six-sided number cube? Group of answer choices 5/6 1/6 1/5 6/5

Which term means shared in common?

The triangle on the right is scaled copy of the triangle on the left

What are the partial products of 315 x 43

Juan pushed a shopping cart 8.4meters at a steady speed. It took him 7.0seconds to push the cart that distance. During that time, Juan's daughter jogged past hi

Consumption of beef in the US increased from 9,529,000 lbs. in 1950 to 27,211,000 lbs. in 2000. What was the percent of increase? Round to the nearest percent

Mrs. Harrell bought 24 packs of pencils. Each pack had 24 pencils. She gave 6 pencils to each of her 23 students and put 12 pencils in each of her 5 learning ce

I need the steps on solving this: Cos^-1(sin pi/6)

What is the term for the process of buying and selling currencies in order to make a profit from exchange rate fluctuations? A) Arbitrage B) Hedging C) Speculat