Answer:
Step-by-step explanation:
assume the coin is circular.
i think radius=2.0 cm
∵ 20 cm is too big for a coin.
i have calculated the area of both the surfaces.
area =2×πr²=2×π×2.0²=8 π=8×3.14=25.12 cm²
if only one surface then area=π×2²=4π≈12.57 cm²
22+2x+8= x+20
2x+30=x+20
x+30=20
x=-10
answer is -10
its c
c
because it is 3x10 to the 5th power there woould be 5 zeros
Answer:no
