Question

please answer fast please I beg you​

Answer 1

Answer:

8. (5/6 x 13/2) + (-9/4 x 5/3)

   (65/12) + (-45/12)

  65/12 - 45/12

  =(65-45)/12

  = 20/12

  = 5/3

9. (-3)²  x (-5/3)²

  = 9 x 25/9

  = 25

ii) (1/2)⁵

  reciprocal = 2⁵

  2⁵ = 2 x 2 x 2 x 2 x2

           = 32

iii) [(2/5)³]⁷

   use: (aᵇ)ⁿ  = aᵇˣⁿ

   = (2/5)³ˣ⁷

   = (2/5)²¹

10. a = 1 , b = 2 and c = -1

General form: ax² + bx + c = 0

                        x² + 2x - 1 = 0

Answer 2

I don't know the question no 9 ,10