Answer:
Step-by-step explanation:
2x²-2x=3
2x²-2x -3 = 0
note :
the discriminat of each quadratic equation : ax²+bx+c=0 ....(a ≠ 0) is :
Δ = b² -4ac
1 ) Δ > 0 the equation has two reals solutions : x = (-b±√Δ)/2a
2 ) Δ = 0 : one solution : x = -b/2a
3 ) Δ < 0 : no reals solutions
***** in this exercice : a = 2 b = -2 c = -3
Δ = (-2)² -4(2)(-3) =28
x = (2±√28)/6
{(3,2),(6,4),(9,6),(12,8)} is the function!
Obtuse angle
Which is a angle between 90 and 180 degrees. Add all of them up you’ll get 105 which is in between 90 and 180.
Answer:
206 5/14
Step-by-step explanation:
divid 2891 by 14
Answer:
144 cubic inches
Step-by-step explanation:
a=lxwxh a=6*6*4
