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

____ carbohydrates do not take long to digest and therefore cause blood sugar levels to rise choices are: trace, simple, and complex

How many syllables are there in wranglers

Lei gets uncontrollably anxious every time she has to speak in front of a group of people. Her psychologist asks her whether she experiences this in any other s

4x-9=10x trying to solve for a perimeter of a square

How do you solve this equation ? 5 + 1 x 10

How was Ghana, under the rule of Kwame Nkrumah, able to quickly build factories and roads?

The hebrew name of the Hebrew bible is __________ , which is an acronym of the three main sections of the holy book

Write the phrase as an algebraic expression. “a number less 15”.

What is ��enjambment��? a. the use of nouns in the place of verbs b. the repetition of initial consonant sounds c. the use of a regular pattern of rhythm

Which of the following best describes a similar effect of American industrialization on both the North and the South? African American labor became central to