The prime factors of 28 are 2 and 7. Their sum is 9.
-2 + -3 + -4 = -9
8. To find 'the sum of' something, is just to add them together really. Eg - The sum of 9 + 3 = 12.
the sum is the answer to an addition problem e.g.4+5=9 9 is the sum
2 + 9 = 11
The quotient of 18 and 2 is 9 The sum of 22 and 9 is 31 31-9=22
9 and 13. I divided by two and went +2 and -2
There is 4 ways to roll a 9 with 2 dice, and 36 possible outcomes. So, the probability of rolling a sum of 9 with two dice is 4/36 or 1/9.
Add them up. The factors of 9 are 1, 3 and 9. The sum of the factors is 13.
9 + 12 = 21
The geometric sequence with three terms with a sum of nine and the sum to infinity of 8 is -9,-18, and 36. The first term is -9 and the common ratio is -2.
The sum of the digits in 252 is 2 + 5 + 2 which equals 9.