A ladder of length 3.5m rests against a vertical wall and makes an angle of 40 with the floor How for up the wall does the ladder reach? Give your answer correct to 1 decimal place.
It reaches
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What is the primary justification of the hypothesis that the early earth environment was void of oxygen? ( 2 points) data showing the concentrations of gases extracted from rocks fossil evidence regarding the origin of eukaryotes generally accepted atmospheric conditions molecular evidence based on evolutionary traits.

According ti the following map, what are the most common mineral resources found in the united states?

The european union was formally established in