Answer:
No, the triangular numbers are not a direct variation. There is not a constant of variation between a number and its position in the sequence. The ratios of the numbers to their positions are not equal. Also, the points (1, 1), (2, 3), (3, 6), and so on, do not lie on a line.
Explanation:
this is correct on edge
The fed is the correct answer
Answer:
The education system of the song dynasty, allowed people from low social classes to have quality education and to obtain valued and well-paid professions.
Explanation:
The song dynasty education system allowed people to have full access to education and participate in examinations to become public officials, regardless of which social class the person belonged to.
This allowed people from lower social classes to rise their position through their professions, moving up the class and reaching higher levels within society, that is, education promoted social mobility.
The -10 is going to be convertible to be +10
I think its D, Professional
Hope I could help (:
