Factor the sum or difference of two cubes completely.27a3 - 8b3
A. (3a + 2b2)(9a2 - 6ab + 4b2)
B. (3a - 2b)(9a2 + 4b2)
C. (3a - 2b)(9a2 + 6ab + 4b2)
D. (27a - 2b)(a2 + 6ab + 4b2)
Answer: C
Mathematics
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- 9 = 10
A. x = - 
B. x = 
, - 
C. x = - 
D. x = - 
, 
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A swimming pool, 24 meters long, is designed to have a water depth of 0.9 meters at one end and 3 meters at the deep end. Find the angle of depression of the pool from the shallow end to the deep end. 
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Mathematics