Answer:
18
Step-by-step explanation:
14 + 8 + 8 + 13 + 5 = 48. 48 + 18 = 66. 66 / 6 = 11.
x = -7 and x = 3
x² + 4x - 21 = 0 factors as follows: (x + 7)(x - 3) = 0.
Then x = -7 and x = 3.
Determine whether the statement is true or false.
13 € {1, 2, 3, ..., 10}
True
