The answer is the square root of 18 because of Pythagorean theorem
The correct answer is 2y(3+4x)
86.40/12.8=6.75. 45.60/9.5=4.8 so yellow fabric costs more
Sorry, I can't do a graph on here for you.
Tan ( a + b ) = [ tan a + tan b ] / [ 1 - (tan a)*(tan b) ];
let be a = 2x and b = x;
=> tan 3x = [ tan 2x + tan x ] / [ 1 - (tan 2x)*(tan x) ] => (tan 3x)*[ 1 - (tan 2x)*(tan x) ] =
tan 2x + tan x => tan3x - tan 3xtan 2xtanx = tan 2x + tan x => <span> tan 3x−tan 2x−tanx = tan 3xtan 2xtanx.</span><span />