Answer:
15, 27, 39
a[n] = a[n-1] +12; a[1] = 15
Step-by-step explanation:
The terms of an arithmetic progression have a common difference.
There are numbers in the given list that have differences of 5, 7, 12. The numbers with differences of 5 have already been listed. Other possible sequences are ...
13, 20, 27 . . . . common difference of 7
15, 27, 39 . . . . common difference of 12
The rule for the latter sequence is "each term is 12 more than the last" and the first term is 15.
Answer: 14.6 degrees
Step-by-step explanation:
180 degrees in a triangle
22.8 + 142.6 = 165.4
180 - 165.4 = 14.6
Answer:
E/I-R=r
Step-by-step explanation: