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

what effect does an increase in atmospheric carbon dioxide, the most common greenhouse gas, have on global warming?

How often does oxygen cycle through the atmosphere?

Meiosis is different from the process shown because, during meiosis, A) chromosomes are not replicated. B) two gametes are made for every original cell. C) four

y=-2x-1 slope intercept graph

513=51.3x =5.13x =0.513x

As we find with most songs, in poetry A. meanings are hidden in imprecise words. B. each couplet must rhyme. C. there's no specific point of view. D. sound and

mason is growing tomatoes in his garden this year. every 1.5 ft of stalk yields about 3.4 lbs of tomatoes. he has four plants with a combined stalk lenghth of 1

In whole milk, 13 parts out of 400 are milk fat. In 2% milk, 1 part out of 50 is milk fat. Which type of milk has more milk fat per cup?

Adjectives and Adverbs 1. Which word in the sentence is an adjective? Our former coach lived in Lima, Peru, until 2008. A. coach B. former C

Animals without a backbone are classified as ________. crustaceans invertebrates arthropods worms