jfvjhsljdl jfvjhsljdl

02-01-2018
Mathematics

contestada

In right triangle ABC, A and B are complementary angles and sin A = 8/9 . What is cos B? NextReset

Respuesta :

tynollette tynollette

02-01-2018

A and B are complementary, that means m∠A+m∠B=90
Recall that sinA=cos(90-A), if sinA=8/9, cos(90-A) is also 8/9
therefore, cosB=cos(90-A)=sinA=8/9

Answer Link

mansoorahmedd67 mansoorahmedd67

24-10-2018

cos B is 8/9 too......................

Answer Link

Otras preguntas

True rhyme refers to words that are spelled alike but pronounced differently. a. True b. False

ASP PLEASES VOCAB Can some one give me a sentence for the word Orthodox that doesn't have to do with religion, it says one here but I need an example for anoth

How long would it take a sound wave from a car alarm to travel 1 km if the temperature is 0 degrees Celsius

HELP; The life spans of 10 adult mayflies have a mean of 4 hours and a MAD of 2 hours. Fill in the table below with possible values for the life spans. You can

What is variation among members of different species called?

Which form details how much money an employer has withheld for taxes?

what is 12.2 rounded to the nearest tenth?

why does Jackson think the US was better in 1830 than in 1609

What are the 4 characteristics of a mineral?

How many faces has a hexagonal pyramid