Determine height of water tower
The angle of elevation from the point A on ground to top of water tower is 19.9 degrees. Point B, 50 feet closer, has the angle of elevation of 21.8 degrees. Determine height of water tower?
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) Rock reaches 8 feet above creek half second after child throws it, and then begins to fall. This is vertex of parabola describing rocks height. Find coordinates of vertex in terms of (time, height)?
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Write down a correct null and alternative hypothesis for testing the claim that mean life of battery for cell phone is at least 55 hours.
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