Solve ∂ 2u ∂x2 + ∂ 2u ∂y2 = 0 for 0 < x < l, y > 0 subject to the following boundary conditions ∂u ∂x(0, y) = 0, ∂u ∂x(l, y) = g(y), ∂u ∂y (x, 0) = 0. if there is a solvability condition, state it and give its physical interpretation.

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true

the answer is: -22 also a

hope i

-lavira: )

i don't see any steps below, sweetheart