Ste7pp2XJericmissama Ste7pp2XJericmissama

15-08-2016
Mathematics

contestada

For an angle Θ with the point (-5, -12) on its terminating side, what is the value of cosine?
a. -5
b. -12
c. -5/13
d. -12/13

Respuesta :

HomertheGenius HomertheGenius

17-08-2016

cos ( theta ) = Adjacent / Hypotenuse
c² = a² + b² = 5 ² + 12² = 25 + 144 = 169
c = √ 169 = 13
Angle theta is in the 3rd quadrant.
cos ( theta ) = - 5/13 ≈ - 0.3846

Answer Link

Otras preguntas

Common factors of 20w and 40wz

Why were guilds developed? a.to encourage trade between regions b.to establish a method for teaching skills c.to protect the interests of the craftspersons d.to

¿Cuál es la capital de México?

Which way of moving molecules across a membrane requires energy? A. meiosis B. diffusion C. osmosis D. active transport

If a nutrient deficiency is suspected, a person may use vitamin and mineral .

how do you write two hundred ten million, sixty -four thousand, fifty?

The formula F = ma shows the relationship between force, mass, and acceleration. Solve this formula for a.

Two positive numbers have a sum of 54. If the larger number is 6 more than three time the smaller, find the two numbers

What did Thomas Paine mean when he said the blood of the slain?

Which of the following would be considered a primary source of information? a. a consumer web site b. an abstract c. an index d. an original research report