mihirb10 mihirb10

23-06-2017
Mathematics

contestada

Maximize Q=3xy^2, where x and y are positive numbers such that x+y^2=2

Respuesta :

RickyChen RickyChen

23-06-2017

Sub x = 2-y^2 to Q, we get:
Q = 3(2-y^2)*y^2
let y^2 = k
Q = 3(2-k)k = 3(2k-k^2)
2k-k^2 has a max when k = 1
Then y^2 = 1 -> y = 1 or -1

Answer Link

Otras preguntas

If you ordered a TV commercial to run on a local TV station that could reach 500,000 households for a cost of $1,000, what would your CPM be? a. $1.00 b.

June sales were $40,000 while projected sales for July and August were $50,000 and $60,000, respectively. Sales are 40% cash and 60% credit. All credit sales ar

For installation with a 25-kVA, 3-phase transformer, a 440-volt primary, and a 120-volt secondary. Calculate the maximum overcurrent protection value (not the f

Read these paragraphs from I Never Had It Made. He not only told me about it, but he acted out the part of a white player charging into me, blaming me for the "

Let a1equals[Start 3 By 1 Matrix 1st Row 1st Column 1 2nd Row 1st Column 2 3rd Row 1st Column negative 1 EndMatrix ], a2equals[Start 3 By 1 Matrix 1st Row 1st

U.S. resident accounted for over 75 percent of cruise ship passengers, and U.S. ports had 8 million passengers leaving on cruises in 2004. The growth in cruise

J. P. Morgan trader Bruno Iksil placed a giant risky trade and lost $6 billion for the bank. His boss and assistant conspired to cover up the losses by filing f

Maria meets all of the requirements of § 1237 (subdivided realty). In 2017, she begins selling lots and sells four separate lots to four different purchasers. S

Suppose that a hurricane hits both North Carolina and South Carolina. North Carolina has severe price-gouging laws in place while South Carolina has none. Both

Read the two sentences. I cannot wait to see this movie. The main character is played by my favorite actress. Which sentence expresses the same idea in a comple