leslieamartinez leslieamartinez
  • 02-08-2017
  • Mathematics
contestada

ΔABC has three sides with these lengths: AB = 9, BC = 40, and CA = 41. What is the value of cos C?

Respuesta :

choixongdong
choixongdong choixongdong
  • 02-08-2017
41*41 = 1681
40*40 = 1600
9* 9 = 81
so a^2 = b^2 + c^2
1681 = 1600 + 81
1681 = 1681 ...it's right triangle

CA = 41 = Hypo.
cosC = Adj / Hypo
cosC = BC / CA = 40/41

answer
cosC = 40/41
Answer Link
caballerosdaniel007 caballerosdaniel007
  • 03-02-2020

Answer:

The correct answer is

C 40/41

Step-by-step explanation:

Answer Link

Otras preguntas

Convert 12 gallons into cups ?
Renewable energy is energy that - will not run out - will not increase in cost - will not cause pollution - can be recycled
Two particles with the same charge will repel each other. True or false
HELP PLEASE Why does the queen of Brobdingnag have a boat made for Gulliver? A.because she wants Gulliver to learn to sail B.because she always looks for ways
What British empire colonies that participated in ww1
John walked 5/6 mile.
The impact that the plague pandemic, also known as the black death, had on the people of england in the 1300s
UMMM who's good at science?!?!?! What causes the convection cell to turn up at point A?Why do you think this convection cell might affect the crust material abo
Sanskrit is the ancient language of?
What is the sum of 58 76?