avajevizian avajevizian
  • 12-05-2020
  • Mathematics
contestada

In △CDE , CD=12 , DE=5 , and m∠E=83∘ .

What is m∠D to the nearest tenth of a degree?

Respuesta :

ronhagrid310
ronhagrid310 ronhagrid310
  • 12-05-2020

Answer:

As law of sin:

CD/sinE = DE/sinC

Then

12/sin83 = 5/sinC

Then

sinC = 5*sin83/12 = 0.413

Then

C = arcsin(0.413) = ~24.4 deg

Then

D = 180-C-E = 180-83-24.4 = ~72.6

Hope this help, bro!

Answer Link

Otras preguntas

What number has the same value as 50 tens?
In math what is the answer to this question. -27•7/9=
Death Valley, California, is 282 feet below sea level. Represent this altitude as an integer. I got -282. Am i correct?
a pipe is leaking and 1.5 cups per day about how many gallons per week is the pipe leaking
Please help!!! 50 points!! 1) Which of the following sets represents the domain of the function shown? ((2,7),(15,13),(21,-4),(24,18)) A) (-4, 2, 7, 13, 15, 18
Identify the action verb: The car raced toward its destination. a. raced b. toward c. destination d. car
what is 2.84 divided by 2
What is 56 decreased by twice a number
ed is using the recipe shown to make fruite salad 4 bananas diced 3 apples diced 6 pears diced 10 strawberries diced he wants to use 30 diced strawberries in hi
If the probability of rain is 0.99 what is the probability of no rain