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

find the value of the trigonometric ratio. make sure to simplify the fraction if needed.

Directions: Rewrite each sentence and capitalize each proper noun. 1. The new student in our class is travis. 2. The white sox is a baseball team from chicago.

Two lines parallel to a third line are parallel to each other. never sometimes always

What is nationality ?How can we enhance it?

I need help this is urgent Write an equation of the line below

Determine the intercepts of the line. Y-intercept: (_,_) X-Intercept: (_,_)

sons Find the values of a and b in the rhombus, Solve for the value of c, it ca tb. 3b+4, (5a-5) A Question Progress (14a +20) 13b-9 A5 OB.4.7 Oct 0,63 Pest Sel

What is the domain of this graph?

Plz helpAfter the Civil War ended, Yankees and carpetbaggers from the North wasted no time in exploiting the weakened South. What was once a proud society that

What is the difference between Packaged and tailored soft ware?