Which two equations would be most appropriately solved by using the quadratic formula? select each correct answer. a: 5x2+7x=15 b: (x+8)(x+9)=0 c: (x−3)2=36 d: 0.25x2+0.8x−8=0

We have that

 A:) 5x²+7x=15>5x²+7x-15=0
 is appropriately solved by using the quadratic formula because the solution is not direct

B:) (x+8)(x+9)=0
is not appropriately solved by using the quadratic formula because the solution is direct
the solution is
x=-8
x=-9

C:) (x−3)²=36> (x−3)²=6²
is not appropriately solved by using the quadratic formula because the solution is direct
the solution is
x=-3
x=9

D:) 0.25x2+0.8x−8=0is appropriately solved by using the quadratic formula because the solution is not direct

the answer is
the option A) and option D)

Find the perimeter of the figure shown above with a side length 5 units.(each figure is a square).a.10 unitsc.30 unitsb.20 unitsd.40 units select the best answer from the choices providedabcdmark this and return