5•6 = 30.
She needs to buy 30 flowers from the store.
Answer:
I would help but the thing is there is no options so sorry man
Step-by-step explanation:
Let u = x.lnx, , w= x and t = lnx; w' =1 ; t' = 1/x
f(x) = e^(x.lnx) ; f(u) = e^(u); f'(u) = u'.e^(u)
let' find the derivative u' of u
u = w.t
u'= w't + t'w; u' = lnx + x/x = lnx+1
u' = x+1 and f'(u) = ln(x+1).e^(xlnx)
finally the derivative of f(x) =ln(x+1).e^(x.lnx) + 2x
Answer:
33 inches
Step-by-step explanation:
x=length of board
x+2x=99
3x=99
x=33
