Decide if the number is rational or irrational.1.27272624...
A. Irrational
B. Rational
Answer: A
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Solve the problem.Boyle's law states that if the temperature of a gas remains constant, then PV = c. where P is the pressure, V is the volume, and c is a constant. Given a quantity of gas at constant temperature, if V is decreasing at a rate of 11 in. 3/s, at what rate is P increasing when P = 40 lb/in.2 and V = 80 in.3?
A. 
lb/in.2-s
B. 
lb/in.2-s
C. 22 lb/in.2-s
D. 
lb/in.2-s
Solve the problem.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height, h, of the outside walls.A = 7 m
A. 4.4 m B. 99 m C. 19.8 m D. 9.9 m
Solve.The manager of a university cafeteria needs to purchase 64 kg of mayonnaise. If his wholesaler sells mayonnaise in 2000 g jugs for $3.85 each, how much will the manager have to spend?
A. $12.32 B. $7.70 C. $246.40 D. $123.20
Write the expression in the standard form a + bi.(9 + 6i) - (-3 + i)
A. 12 - 5i B. -12 - 5i C. 12 + 5i D. 6 + 7i