serinatrails19 serinatrails19

10-04-2017
Mathematics

contestada

PLEASE HELP!!! WILL GIVE BRAINLEST AWARD FOR MOST DESCRIPTIVE
Solve for x using cosine law

x^2 = 5^2 + 10^2 - (2510*cos60)

Respuesta :

10-04-2017

The law of cosines states that:

c^2=a^2+b^2-2abcosC

You already have all the values for the variables with the exception of x so:

x^2=25+100-100cos60

x=√(125-100cos60)

x=√75

x≈8.66 to nearest one-hundredth...

Answer Link

Otras preguntas

The percentage of members from slave states was __________ percent in 1800 and __________ percent in 1850.

help !!!!!!!!!!!!!!!!!!!!!!!

if y varies directly as x and y=4 when x=8, find y when x=44.

There is a line that includes the point (5,10) and has a slope of 2. What is its equation is slope intercept form?

Systems of equations with graphing

some one plz help it's due in like 15 minutes!!!!

If you can help me with this you are AMAZING!!!!!!!!!!Thank you to everyone who has helped people on this website it helps me and I know other people out a ton,

A healthy diet aids in all of the following except: Maintaining Wellness Fighting Disease Decreased Sleep Lowers Chronic Disease

What is the slope of the line on the graph?

Can someone pls help me answer these questions!!! Im so confused and need this for tm!! PLS ASAP