Answer:
3/10
Step-by-step explanation:
From the question :
Let amount rytis get = x
Hence, amount Linda gets = 3x
Hence, amount Adam gets = 2 times what Linda gets = 2(3x) = 6x
Hence, total amount shared :
x + 3x + 6x = 10x
Amount Linda got = 3x
Therefore, fraction Linda gets = Amount gotten by Linda / total amount = 3x / 10x = 3/10
Hence, fraction gotten by Linda = 3/10
Answer:
120° and 240°
Step-by-step explanation:
The given info about the angle x is cos x = - 1/2.
By definition, cos x = - 1/2 = (adjacent side) / hypotenuse, so here we can assume the adjacent side is -1 and the hypotenuse is 2.
A negative cosine tells us that the angle is in Quadrant II or Quadrant III.
If x is in Quadrant II, then its value is 120°
If x is in Quadrant III, then its value is 120° + 120°, or 240°
Check:
X^2-y^2
you would get x^2+xy-xy+y^2
the xy and -xy cancel
