Graph the system of inequalities, and find the coordinates of the vertices.x + 2y ? 2 x + y ? 0
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.According to the Gas Kinetic Theory, the average speed of a gas particle is given by 
where 
is the speed in m/s, k is the constant 1.38 × 10-23, T is the temperature of the gas in Kelvin, and m is the mass of the gas particle in kg. What is the average speed of an oxygen molecule with a mass of
at a temperature of 500 K?
A. 1020 m/s B. 174 m/s C. 575 m/s D. 330,700 m/s
Add or subtract measurement numbers, rounding to the correct precision.9.5 gal + 6.9 gal
A. 16.4 gal B. 16.5 gal C. 16.14 gal D. 16 gal
Solve the problem.Find the missing length in the similar triangles.
A. x = 20 B. x = 12 C. x = 25 D. x = 19
Find the mode of the list of data.0.70, 0.25, 0.70, 0.13, 0.25, 0.29, 0.56, 0.70
A. 0.70 B. 0.70 and 0.25 C. 0.51 D. 0.25