The domain is the values that x is allowed to be and range is the values that the y's end up being
Answer:
Step-by-step explanation:
Because sine = opposite over hypotenuse, simply multiply both sides by the hypotenuse to get:
hypotenuse * sinθ = opposite
Do the same thing with cos to get:
hypotenuse * cosθ = adjacent
Hope it helps :) and let me know if you want me to elaborate.
Answer:
28
Step-by-step explanation:
We can see that all the angles are inside of a triangle and the sum of the interior angle of the triangle is 180 degrees.
Knowing this, we know that the sum of all the angles present is 180 degrees.
1st angle can be seen as 90 degrees, 2nd angle is x+6 and the 3rd is 2x.
The sum can be written as ( 90 + x + 6 + 2x ) and this equals to 180 degrees.
90 + x + 6 + 2x = 180
96 + 3x = 180
( subtract 96 on both sides )
3x = 180 - 96
3x = 84
( divide by 3 on both sides )
x = 84 / 3
x = 28
K=4
add seven on both sides
2x-4y=7
add 4y on both sides
2x=7+4y
divide 2 on both sides
x=7+4y/2
plug that into original equation
2(7+4y/2)-4y-7=0
7 and 4y cancel out
2(2)=0
4=0
I am not sure what the question is