Answer:
100
Step-by-step explanation:
The Richter scale is a logarithmic scale, so the ratio of intensities is ...
(10^5)/(10^3) = 10^(5-3) = 10^2 = 100
The latter quake is 100 times as intense as the former one.
The missing angle is 94 degrees
Answer:
4
Step-by-step explanation:
I'm guessing that each number represents the number of rectangles that overlap. Where you see 1, there is only one rectangle, 2 shows where two rectangles overlap, and so on.
At the question mark, it appears as though four rectangles overlap. So a 4 would go there.
The square root of 1.21 is 1.1, which is rational, because it can be expressed as the fraction 11/10.