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

Convert the scale map to unit rate. For every 3/10 of an inch that equals 7/8 mile. How many inches represents one mile?

in what way did British leaders misunderstand the Revolutionary War

Examine the usage of the words bequeath and posterity in this excerpt from thomas paines's common sense. the complete sentences that follow.

Which Demographic Shift Helped Ronald Reagan Garner Conservative Votes Across The Country <3

What is the difference between a monologue and soliloquy?

describe the main duty of the justices of the supreme court, along with the tasks involved

What type of stock receives an equal part of the profits on each share to be distributed after all other obligations of the company haver been satisfied?

If 60% of a number is 18 what is 90% of the number

What are the four forms that water takes when it returns to earth from the clouds?

Elliott's bed is 75 inches long. During his growth spurt, Elliott grew 6 inches. Before his growth spurt, he was 5 feet 11 inches tall. How much shorter is Elli