Answer:
A) 5 units
Step-by-step explanation:
ABC is a 30-69-90 degree triangle whose sides, respectively, are in the ratio of 1 :
: 2
so if the hypotenuse is 10, the side opposite the 30° angle is half of that, or 5
A - actuary...........that is the answer
0,9x
10%=0,1
100%-10%
1x-0,1x=0,9x
Yes.
It simplifies to 2x=3x+1
-x=1
x=-1
That is a horizontal straight line at -1