Wednesday
December 4, 2013

# Posts by Martha

Total # Posts: 239

Physics
An airplane flies due north at 220 km/h with respect to the air. There is a wind blowing at 65 km/h to the northeast with respect to the ground. What are the plane's speed and direction with respect to the ground?

economics
Market demand is given as QD = 200 â€“ 3P. Market supply is given as QS = 2P + 100. Each identical firm has MC = 0.5Q and ATC = 0.25Q. What is each firmâ€™s profit?

economics
A monopolist faces market demand given by P = 200 â€“ Q. For this market, MR = 200 â€“ 2Q and MC = 3Q. What quantity of output will the monopolist produce in order to maximize profits?

geometry
what is the value of x , if one lenght is 16, and the other one is 23

Chemistry
How much energy (in kcal) is needed to convert 53.2 g of water at 55.0 C to steam at 100.0 C

Physics
Two teams are having a rope pulling contest. Team A is pulling with a force of 2400 N at 135 and team B is 1550 N at 315. What is the resultant force?

Algebra
Thanks! That's what I thought

Algebra
Hello, I have been trying a few ways to do this problem and am not having success. The sum of four consecutive odd integers is -212. Write an expression for the second, third and fourth odd integers. Use these expressions to write, and solve an equation to find the four intege...

professional communication
explain the importance of five sentence starters that you can use in a professional presentation?

physics
A car moves at a constant speed of 24m/s. How long (in minutes) will it take to travel 15.0 km?

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