Answer:
x - .2x
Step-by-step explanation:
You take the regular price minus the regular price times the discount percentage in decimal form
So if it’s 3 for 10 you have to find the average. Divide 10 by 3 to get you 3.33 $ per magnet. But we need 8 magnets! So 8x3.33= 26.64$
The list that shows greatest to least is b
Root 3 /sin 20 - 1/cos 20
= (root3 cos 20 - sin 20 )/ (sin 20 cos 20)
(multiplying and dividing by 2)
= 2* (root3/2 cos 20 -1/2 sin 20)/ (sin 20 cos 20)
now sin 20 cos 20 = (2 sin 20 cos 20)/2 = (sin 40)/2
and writing root3/2 = sin 60, 1/2 = cos 60
= 2* (sin 60 cos 20 - cos 60 sin 20)/ (sin 40)/2
= 4* (sin (60-20))/sin 40
= 4* (sin 40)/sin 40
=4
Ask if any doubt in any step :)
Answer:
The mean is 28.3 or 28
I added it all and then divided it by how many different numbers there were.
