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

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

Which of these terms describes the agreement between Abraham and god that forms th foundation of the Jewish religion?

Discuss the ways in which the Northern and Southern economies and social customs differed in the decade prior to the Civil War. Why are they characterized as ha

Why was control of the Atlantic Ocean essential to Great Britain’s success in world war 2

what is the Atlantic charter?

What was the primary purpose of the Sibley Commission in Georgia? Question 5 options: To help schools across Georgia integrate peacefully To discover how Georgi

Why was Charliemagne hesitant about being crounded Holy Roman Emperor?

What are the solutions of the system? Solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Como queres que te quero si el que you quero no me quire como yo lo quero

Can someone please factor this fully? My friend and I have two different answers and i would like to know if either of them is right. Thank you in advance. a^2

cual caballos son reales