Answer:
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55 degrees
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Step-by-step explanation:
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In the initial position, the angle of elevation of the 20 meter building to your feet is 45 degrees, that means that you are at 20 meters from the building (thus forming an isosceles triangle with with the building, with internal angles 456 degrees, 90 degrees, and 45 degrees.
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When you walk 6 meters towards the building, you are now at 14 meters from it. Therefore you need to examine now another triangle where the angle is unknown but for which you know the opposite side (20 meters of the building's height), and the adjacent side (14 meters of your distance to the building). See image attached for more clarity on the picture you need to study.
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The tangent of this new angle is defined as opposite side divided by adjacent (opp/adj) which in our case renders 20/14 = 10/7
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So to find the angle, we need to apply the arctangent function to this value.
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Therefore:
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<em>new angle = arctan(10/7) = 55 degrees</em>
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-11=-5x+19y
5x-11=19y
(5x-11)/19=y
Answer:
i need to see the plane please
Step-by-step explanation:
I'm assuming you mean that the plant grew 1/16th of an inch the first week, and 3/16th of an inch the next week. Simply add the two together (4/16th) and simplify. Since four goes into both numbers, the simplified version is 1/4th. Hope this helps