Answer:
Step-by-step explanation: 24 squared is 576 - 44x + 12
576 + 12 = 588
588 - 44x
Well 22/7 is 3.14 and so on but since there is a little more than 3 you need to make sure he covers up all the fencing places... SO John will need 4 fences
15
The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30
The factors of 45 are: 1, 3, 5, 9, 15, 45
The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
Then the greatest common factor is 15.
44
Step-by-step explanation:
D=b²-4ac=(-6)²+4×2×1)=44
