Answer:
100 km
Step-by-step explanation:
Speed = distance/time
=> Speed × time = distance
=> Distance = speed × time
=> Distance = (40 km/h) × 2.5 hours
=> Distance = 100 km.h/h
=> Distance = 100 km
Answer:
Option A. The volume of the sphere is multiplied by 1/343.
Step-by-step explanation:
The volume of a sphere can be obtained by the following formula:
V = 4/3πr^3
Let the initial volume (V1) of the sphere be:
V1 = 4/3πr^3 = (4πr^3)/3
Now, if we multiply the radius by 1/7, then the new volume (V2) of the sphere will be:
V2 = 4/3 x π x (1/7r)^3
V2 = 4/3 x π x 1/343r^3
V2 = (4πr^3)/1029
Now we determine the ratio of V2 : V1 as shown below:
V2/V1 = (4πr^3)/1029 ÷ (4πr^3)/3
V2/V1 = (4πr^3)/1029 × 3/(4πr^3)
V2/V1 = 3/1029
V2/V1 = 1/343
V2 = 1/343 x V1
Therefore, the volume of the sphere is multiplied by 1/343.
Answer:
182
Step-by-step explanation:
10a+b
10 x 17 + 12
170 + 12
182
Answer:
b
Step-by-step explanation:
Answer:
864.0555 should be your answer.
