Answer:
B
Step-by-step explanation:
Answer:
Its the first option.
Step-by-step explanation:
After you have drawn to intersecting arcs, You draw a line through the intersecting point to the vertex.
20.2
Volume of sphere = 4/3*pi*r^3
34500 = 4/3*pi*r^3
25875 = pi*r^3
8240.445 = r^3
r = 20.2
D=r×t, plug in the numbers,
150=30×t.
then divide each side by 30.
150÷30=5
5=t
therefore, it will take him 5 hours.