Hello :
look : 40 = 2×20 80 = 2×40
knowing tan 20º by calculator , for 40° , 80°use the identity :
tan (2x) = (2tan(x))/(1-tan²(x))
The formula for the area of a triangle is A = .5 x base x height, use that to find the area of all the triangles after seperating them and then add
Answer: if u are asking $12 off pay 5% sales is
11.4 but if ur asking 12% off of $5 4.40 if anything other then that im not sure the question
Step-by-step explanation:
Answer:
x=25
Step-by-step explanation:
2(x+25)=100
2x+50=100
2x=50
x=25