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 :

sqdancefan sqdancefan

02-04-2018

2ab·cos(C) = a² +b² -c²
.. = 4² +3² -2²
.. = 16 +9 -4
.. = 21 . . . . . . . matches selection B

Answer Link

drrpepper drrpepper

26-10-2020

Answer:

b 21

Step-by-step explanation:

Answer Link

Otras preguntas

Diffusion is the movement of particles against the concentration gradient 1)correct 2)incorrect

What causes heat energy when you rub two objects against each other?(2 points) The air around the objects The flow of heat from one object to the other The fric

the use of baking soda

KM and NP areparallellines. J K L M N O P Q Which angles are corresponding angles?

3. Which of the following is the Holiest Book of Islam? The Talmud The Hindu The Gospel The Qur'an

Cell d1 contains the value 7. 877. You want cell d1 to display this value as 7. 9 but keep the original number in calculations. How can you accomplish this?.

Find 0 (in radians) for an angle having an arc length of 21 and a radius of 8. 0 = = radians

How do you find the equation of a perpendicular bisect or of a line segment?

Juan: Hola, me llamo Juan. Yo 15 años.

I need help with my Hindi homework