ericfin1967
ericfin1967 ericfin1967
  • 08-04-2018
  • Mathematics
contestada

Use the Law of Cosines to find the value of cos theta.

A) -0.72
B) 0.29
C) 0.78
D) 0.38

Use the Law of Cosines to find the value of cos theta A 072 B 029 C 078 D 038 class=

Respuesta :

zoe192 zoe192
  • 08-04-2018
Cos(theta)= (10^2 + 15.2^2 + 14.7^2)/ 2 x 10 x 15.2
= (100+231.04+216.09)/304
=547.13/304
=1.7998
Answer Link

Otras preguntas

VERY URGENTTTT PLS HELP!!!!!!!!!!!!!!!!!
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 1) Write the equation of the line x 3y
Drag each pair of rates to the correct location on the table. Identify the pairs of rates as equivalent or not equivalent. and and and and and 10 and PLS PLS PL
A ABC is isosceles. Find AC. B 3x + 3 20 + 8 A A C
Four months ago, Cynthia signed up to receive email notifications to remind her to change her contact lenses, Cynthia's first email arrived 9 days after she set
who owns the British Broadcasting Company?
Which is the best place to find evidence for an argumentative essay? 1.a novel 2.a blog 3.a primary source 4.a biased source
What is the main idea of the first stanza of "Auspex"?
What is the name of the macromolecule that makes up the MAJORITY of the cell membrane? A. lipids B. carbohydrates C. proteins D. nucleic acids
how do you translate "the number, y, decreased by eleven." as a variable expression.​
good job