how many meters has the mid-atlantic ridge moved in 60 million years? Write your answer in scientific notation.
1 answer:
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Answer:
0.4
Step-by-step explanation:
If the ratio of boys to girls in a class is 2:3, then
- there are 2x boys;
- there are 3x girls.
If there are 18 girls in the class, then
Thus, there are
boys;
girls;
students in total.
The probability of a boy being in the class is
You want to find the volume inside the hemisphere (i.e. inside the sphere but above the plane
) and outside the cylinder
. Call this region
.
In cylindrical coordinates, we have
(where )