Answer:
Circle B
3.14 cm
Step-by-step explanation:
1. The diameter is twice the radius, so the diameter of Circle B is ...
2 × 5 cm = 10 cm
This diameter is greater than the 9 cm diameter of Circle A, so Circle B is larger and will have a larger circumference.
2. The circumference is the product of π and the diameter. Then the difference between the two circumferences is ...
... (circle B circumference) - (circle A circumference) = π·(10 cm) - π·(9 cm)
... = π·(10 -9) cm = π·1 cm ≈ 3.14 cm
Answer:
nine
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
2-(-2)=2+2=4
They are all correct except in 5), 4+8 is 12, not 13.
Answer:
2
Step-by-step explanation:
15+-13 = 2
