The product/quotient of like signs are always positive.
The product/quotient of unlike signs are always negative.
ie.
+*+=+ and -*-=+
+/-=- and -/+=-
Answer:
7
Step-by-step explanation:
Given,
3 Piles = 21 cards
1 Pile = (21 ÷ 3) cards
= 7 cards.
2/3. you can divide the numerator and the denominator both by 3.
The circumference is defined to be c=2πr. where the circumference is equal to 2 times pi times the radius
