. Solve the Neumann wave problem on the half-line    utt = 9uxx + e t for t > 0, x > 0 u|t=0 = 1 + x ut |t=0 = 4 − 3 cos x 3 ux|x=0 = 2 − cost

Step-by-step explanation:

   format not supported

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*