K(t) = 10t - 19
k(-5) =

-69

Step-by-step explanation:

k(-5) = 10*-5 -19

= -50-19

=-69

; )

step-by-step explanation: ; )

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!