Answer:
what does that question mean?
Answer:
2√5
Step-by-step explanation:
d = √(x2 - x1)² + (y2 - y1)²
= √[1 - (-1)]² + [3 - (-1)]
= √(2)² + (4)²
= √(4) + (16)
= √20
= 2√5
Answer:
558/1
Step-by-step explanation:
-(-2)^4 = 16
The - sign multiplies inside the bracket to a positive, 2^4 = 16
