Answer:
7. 3x + 1
8. -2x + 4
9. -x - 3
10. -x + 2
Step-by-step explanation:
Answer: angle ADC measures half of 124 that is 62 degrees
(x + y)² = 35
The expansion of
(x + y)² = x² + 2xy + y²
= x² + y² + 2xy ← substitute given values
= 25 + 2(5)
= 25 + 10
= 35
