bambamjojojoneoxetct bambamjojojoneoxetct

03-05-2018
Mathematics

contestada

What is the value of x?
sin(x+21)°=cos(2x+21)°

Respuesta :

calculista calculista

17-05-2018

we know that
if sin A=cos B
then
angle A and angle B are complementary angles
so
A+B=90°

in this problem
(x+21)+(2x+21)=90-------> 3x+42=90-------> 3x=48-----> x=16°

Answer Link

Otras preguntas

-2|0.8z+3.5|-10=20 how do you solve??

Identify the type of benefit for each statement. Reducing stress about STDs is a(n) benefit of abstinence. Maintaining reproductive health is a(n) benefit. Incr

Could libel or slander be defamatory speech?

if the moon is completely in earth's darkest shadow, what will people experience? A: A partial solar eclipse B: a total solar eclipse C: a partial lunar eclipse

Elena drank 5 bottles of water over 7 volleyball practices. How much water did Elena drink each practice if she drank the same amount each time? Please have goo

what is the definition of tendon

A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. It takes a time

Okay,sorry to ask but here it is. Using complete sentences give me an example of a situation where you made sense of a problem and did not give up trying to sol

Explain how Corbin could use Amendment V for his defense.

.The equation p = 3f - 50 can be used to represent a shop's profit from Valentine's Day's flower sales, where f represents the number of flowers sold and p is t