Answer:
The number of integers that can't be expressed as a difference between the squares of two integers is 250.
Step-by-step explanation:
Answer: a = 65° b = 78° c = 37°
Steps:
(2x - 9) + (2x + 4) + x = 180°
5x - 5 = 180 °
5x = 185°
x = 37
(2x + 4)
2(37) + 4
74 + 4 = 78
(2x - 9)
2(37) - 9
74 - 9 = 65
Check:
65° + 78° + 37° = 180°
180° = 180°
A. FE
b. EG
c. BDHF and ACGE