Question

alguém me ajudar plmds pfv​

Answer 1

a) 9/4 - 15^2 =

   9/4 - 225 =

  - 891/4 =

   -222,75

b) (4*9/4-5*2/5)^2 =

    (9-5*2/5)^2 =

    (9-2)^2 =

     7^2 =

      49

c) (15/3)^3 + 2/5 =

    5^3 + 2/5 =

    125 + 2/5 =

    627 + 2/5 =

    627/5 =

     125,4

d) 15^2 + 2/2/5 - $\sqrt{9/4}$ =

    225 + 5 -  $\sqrt{9/4}$ =

    225 + 5 - 3/2 =

    230 - 3/2 =

    457/2 =

    228,5