How do temperature humidity and pressure vary within air mass

Find u (t, x) solving the IVP on the half-line for the diffusion equation: ut - uxx = 0 (t>0; x in R) ux (t, 0) = sin (t) u (0, x) = x I can do this problem for the most part but I'm struggling to get rid of the non-zero Neumann boundary condition.

What is the Mode of the following number sequence: 1, 2, 3, 4, 5, 6, 7, 8, 9

What is the sum of 667and 23

For the following numbers, decide whether each number is less than or greater than one million without using a calculator. Explain. 1. 3^6 (3 to the 6th) 2. 9^5 (9 to the 5th) 3. 12^6 (12 to the 6th)

The first term of sequences is 29, and the fourth term what are the second and third term

A data set provides information about some group of individual

Ba=bc-2d. Express b in terms of c and d

Solve the system 4x+2y=7 y=5x I keep getting 1/2 and 5/2 but there not one of my answer choices.

Edna hás a jar of marbles that is filled 1/2. She decides to empty the jar by handing out an equal number of marbles to 7 of her friends. What fractional part of the jar will each friend receive.

A jar contains 0.25 liter of apple juice and 0.30 liter of grape juice. Melissa poured 0.75 liter of pineapple juice into the jar. She then drank 0.20 liter of the mixture.