natashaartem natashaartem

27-03-2020
Mathematics

contestada

What value of θ makes cosθ = sin40° a true statement?
A) 20°
B) 40°
C) 50°
D) 90°

HINT: Complementary angles

Respuesta :

Hrishii Hrishii

27-03-2020

Answer:

C) 50°

Step-by-step explanation:

[tex]cos \: \theta = sin \: 40 \degree \\ cos \: \theta = cos(90 \degree - \: 40 \degree) \\ cos \: \theta = cos \: 50 \degree \\ \implies \: \theta = 50 \degree \\ [/tex]

Answer Link

Otras preguntas

Why did the Interstate Commerce Commission have difficulty enforcing reforms?

Who invented the first computer?

A square had a perimeter of 28 ft. What is its area?

Who built the Panama Canal second?did they succeed?why or why not?

Which of the following is created by mass production? -custom-made jewelry -novels -computers -paintings

In 1985, why did Ronald Reagan violate his principle of not negotiating with terrorists?

Why is ETC so important to ATP production?

How do you write 3.806 million in standard form ?

Agree or disagree with the following statement and explain your answer: Archetypes are specific to each culture, and the same object may have a very different s

what are the causes of problems the Mayas and other native american groups face in Guatemala? How are people trying to solve these problems.