√2(1+√2)

√3(2-√3)

These are 2 different questions

d. corresponding side lengths in similar triangles are proportional in length.

step-by-step explanation:

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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the answer on ed. is:

c. "the graph of f(x) has exactly two x-intercepts."

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