Step-by-step explanation:
it is from minus infinity to infinity
Answer:
20/21.
Step-by-step explanation:
tan X = opposite side / adjacent side
= 20/21.
You can use this memory aid for the 3 main trigonometric ratios:
SOH-CAH-TOA:
SineOppositeHypotenuseCosineAdajacentHypotenuseTangentOppositeAdjacent.
It equals 4/3 or 1.3333333...
To add fractions, you want the bottom number (the denominator) to be the same.
The 1/3 has a denominator of 3, so to make 1 have a denominator of 3, you can make 1=3/3
so you have 3/3 +1/3=4/3
x+y=17000 (x.7+y.15)/100=2000 (7x+7y)+8y=200000. 8y=200000-17000.7 y=61.5.5.5 17000-y=9375=x x=9375