10th grade Math

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A radio station's signal has a radius of 100 miles. If you drive at a constant speed of 40 miles an hour, nonstop, directly across the diameter of the signal, how long can you listen to the station before the signal fades?

  • 10th grade Math -

    200/40 = ?

  • 10th grade Math -

    1.)Explain why ironing boards always remain parallel to the floor and can be adjusted for people of various heights. You may want to consider the following:
    a.The legs of the board are built so that AD = BD and DE = DF, and ADF and BDE are straight lines as shown.
    b.Which angles are equal? Why?
    c.Join EF. Which triangles are similar? Why? Name three other objects that demonstrate this property and explain why they are designed in that way.

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