Answer:
sin = opposite / hypotenuse
cos = adjacent/hypotenuse
sin U = 4/5
cos U = 3/5
sin T = 3/5
cos T= 4/5
Answer:
Amount of green color used =

Step-by-step explanation:
We are given the following in the question:
Every 4 gallons of green paint is mixed with 3 gallons of blue paint. to make a particular shade.
Ratio of green color to blue paint can be calculated as:

Amount of shade = 16
Amount of green paint = 
Amount of blue paint = 
Thus, we can write:

Amount of green color used =

Amount of blue paint used =


and surely you'd know what the roots are
Answer:
We have:
x < 4 AND x > a.
if a = 4 and we use an "or" instead of the "and" we have:
x < 4 or x > 4.
This is:
"x is larger than 4 or smaller than 4."
Then the solution of this is all the real numbers except the value x = 4.
The set of solutions can be written as:
{xI x ∈ R \ [4]}
Where this reads:
"x belongs to the set of the reals minus the number 4".
Or we also could write it as:
x ∈ (-∞, 4) ∪ (4, ∞)
Where we have two open ends in the "4" side, so the value x = 4 does not belong to that set.