TheBlue2897 TheBlue2897
  • 13-03-2020
  • Mathematics
contestada

Which parts of △DEF can be determined using only the Law of Cosines?

Which parts of DEF can be determined using only the Law of Cosines class=

Respuesta :

PollyP52 PollyP52
  • 13-03-2020

Answer:

The length of DE,

Step-by-step explanation:

The law of cosines is applied when  2 sides and the included angle are known.

So here:

DE^2 = 6*2 + 9^2 - 2.6.9cos53.

Answer Link

Otras preguntas

When conducting research, it is most important that a student always:
If r(x) = 3x - 1 and s(x) = 2x + 1, which expression is equivalent to 402 - 3(6)-1 2(6)+1 (6) 2(6) + 36-1 26+1 (6)-1 (6) +1
Pls help!!!! Slope = -1/6; (12,-2)
Write the fraction 6/6 as a sum of fractions three different ways.
How is it possible to control a wheelchair or an artificial limb with your mind?.
Mark is building a scale model of his car as shown in the diagram. The actual car has a height of 10 feet and the model has a height of 1 foot at the same place
The sum of the first n consecutive even numbers can be found using S = n2 + n, where n > 2. What is the value of n when the sum is 30?
what is the equation for cos, tan, and sin in math?
What percentage of these running times are longer than 6.44 minutes
Please help! Not timed, but clueless!