The cosine of an angle in an isosceles right triangle is always √(2) / 2.
-2m+4m+5=3
(-2m+4m)+(5)=3
2m+5=3
2m+5-5=3-5
2m=-2
2m/2=-2/2
m=-1
Answer:
5 shirts for 12 is 60 dollars
20 dollar dress plus 60 is 80
Step-by-step explanation:
Answer:
See below.
Step-by-step explanation:
Sin (4π/3) = -sqrt(3)/2
Cos(4π/3) = -1/2