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Question: Air enters a compressor with a pressure of 14.7 lbf/in.2, a temperature of 70°F, and a volumetric flow rate of 40 ft3/s. Air exits the compressor at 50 lbf/in.2 and 190°F. Heat transfer from the compressor to its surroundings occurs at a rate of 20.5 Btu per lb of air flowing. Determine the compressor power, in hp, for steady-state operation.
An American bank A and a European bank E agree a currency swap. In n successive weeks w = 1, 2,...,n, bank A will buy $100 million worth of euros from bank E.
How do teachers really make a difference to an effective program?
Using the data from the Koko Company, determine the divisional income from operations for the A and B regions. I need to allocate service department expenses proportional to the sales of each region
Consider the constants A, B, C and the function f(x, y) = Ax^2 + Bxy + Cy^2. Show that the only choice of coefficients A, B, C giving ∂^2f/∂x^2+∂^2f/∂y^2= 2,
A new blood test has been developed to identify if children have asthm~Of the 518 children that were tested in a pediatric practice, 44 had asthma, but only 36 tested positive for it. Of the 474 children who did not have asthma, 18 had a mistakenly p..
A rectangular storage bin is to be made from a rectangular piece of sheet metal 12 in. by 10 in., by cutting out equal corners of side and bending up the sides.
a. Find the regression equation in the form y=ax2 +bx2 +cx +d that best approximates the data. Express the values of a, b, c, and d to the nearest hundredth. b. Use the equation to find the number of boxes, to the nearest whole number, that the team..
The initial contact person calls three other people, each of whome call three others and so on, until all the people in the band Committee have been contacted. What is the maximum number of people they need to make the calls.
Cyndee wants to invest $50,000. Her financial planner advises her to invest in three types of accounts: one paying 3%, one paying 5 12 %, and one paying 9% simple interest per year. Cyndee wants to put twice as much in the lowest-yielding, least-r..
Find the best predicted value of y corresponding to the given value of x. The regression equation relating attitude rating (x) and job performance rating (y) for the employees of a company is hat(y)=11.7+1.02x. Ten pairs of data were used to obtai..
ELECTIONS In an election being held by the Associated Students Organization, there are six candidates for president, four for vice-president.
Show that sin mt and cos nt are orthogonal for all positive integers m and n.
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