(b)Suppose that functions u and v are harmonic in D. Are the following functions harmonic? (1) u²v²; (2) uv; (3) 9u + 13v; (4) Vry + Au (Assume that harmonic functions are smooth functions with all derivatives.)

Q: 2) Ms. Soliman wrote the four expressions below on the board. Expression 1: 9 + 5x-5 +3x Expression…

A: Explanation of the answer is as follows

Q: IV4 +x dr

A:

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A:

Q: Simplifying 24 over 12?

A: Given,

Q: Pls help me answer/ understand this problem. My answer was B, but I'm wrong. Thanks so much.

A: Hypothesis test of population mean is conducted to test whether the population mean is equal to the…

Q: prow $ PCC-AIB)= pccl B) - p(AIB)

A: The answer is given below

Q: A shelf can be packed from end to end with 30 large books or 45 small books. Kevin already packed…

A: Given data:- The shelf can fill with large books, =30 books The shelf can fill with small books, =45…

Q: ( 5ょ) 3xー5)(42

A: Given expression is (3x^2 -5)(4x^2 +2)

Q: I'd like u to answer a-d

A:

Q: Find the number of ways to arrange the letters in REVERENCE. There are ways to arrange the letters…

A: given data  word : REVERENCE   number of ways to arrange letter of reverence = ?

Q: O 8. Simplify. (a*b®) (a°b*) O a'z8

A: The given expression,      a5b6a2b2

Q: Question 3: Simplify the following expression: Re(-1e²)

A:

Q: How do you solce part d?

A: Let, X= the number of incoming calls involving a fax messages among 25 incoming calls. This…