yodeamisstefinabde yodeamisstefinabde

02-09-2016
Mathematics

contestada

If in triangle ABC, a=5, b=6 and c=8, then cos A is...

Respuesta :

meerkat18 meerkat18

08-09-2016

In a triangle, the nomenclature is that a variable side a is opposite of the angle A. we can use the cosine law to determine the value of cosine A.
a2 = b2 + c2 -2bc cos a25 = 36 + 64 - 2*6*8 * cos acos a = 25/32

Answer Link

Otras preguntas

Which of these is considered to be the "spark" which ignited World War I? A) the invasion of Poland B) the invasion of Belgium C) the assassination of Franz-F

The APR of Kylee's savings account is 5.6% and the interest is compounded quarterly. If the principal in Kylee's savings account is $5800 for an entire year, w

Anna Hikes 6.4 miles during a 4-day vacation . If she hikes the same distance each day, how many miles does she hike each day? A) 1.06 miles B) 1.1 miles C) 1.

Write MDCCCXXXVI as a number.

A manor house was useful because it was a a.place where tenants of the manor could stay. b.center for the administration of the community. c.place for peasan

how does verbs work ?

The first battle of bull run the second battle of bull run the battle of antietam the battle of shiloh the battle of vicksburg the battle of gettysburg the wild

What does science & physical activity have in common?

Which of the characters is in critical condition from the fire? outsiders?

What Message did Jomo Kenyatta Use as the Basic Themes of his Book Facing Mount Kenya