Solve the problem.The weight of a certain gas is 1
kg per cubic meter. How many cubic meters would be occupied by 28 kg of the gas?
A. 21 m3
B. 28 m3
C. 261
m3
D. 
m3
Answer: A
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Graph the region described by the inequality.x - y > -3
A. 
B. 
C. 
D. 
Write the trigonometric expression as an algebraic expression in u.sin (tan-1 u)
A. 
B. u
C. 
D. 
Factor the polynomial by grouping.12x2 - 15x - 16x + 20
A. (3x + 4)(4x + 5) B. (3x - 4)(4x - 5) C. (12x - 4)(x - 5) D. (12x + 4)(x + 5)
Leo Moser studied the effect that two face-to-face panes of glass have on light reflected through the panes. If a ray is not reflected, it has just one path through the glass. If it has one reflection, it can be reflected two ways. For two reflections, it can be reflected three ways. How many possible paths are there for three reflections. ? __________ paths
Fill in the blank(s) with the appropriate word(s).