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anonymous

  • one year ago

A giant pie is created in an attempt to break a world record for baking. The pie is shown below: What is the area of the slice of pie that was cut, rounded to the nearest hundredth? (5 points) 22.08 ft2 24.45 ft2 26.32 ft2 28.97 ft2

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    @LynFran

  3. anonymous
    • one year ago
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    @Mertsj

  4. DanJS
    • one year ago
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    45/360 of the total area of the circle with radius (1/2)d = 15/2

  5. anonymous
    • one year ago
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    What I still don't get it.

  6. DanJS
    • one year ago
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    can you figure the area of the circle with diameter 15 ?

  7. anonymous
    • one year ago
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    No

  8. DanJS
    • one year ago
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    Area Circle = pi*radius^2

  9. anonymous
    • one year ago
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    ok so it would be 3.14(7.5)^2

  10. DanJS
    • one year ago
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    yes

  11. DanJS
    • one year ago
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    The slice is 45 degrees of arc out of the full 360 degrees

  12. anonymous
    • one year ago
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    176.625

  13. anonymous
    • one year ago
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    ok and...

  14. DanJS
    • one year ago
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    45/360 is the fraction of the full circle that the slice is

  15. DanJS
    • one year ago
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    or 1/8

  16. anonymous
    • one year ago
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    .125

  17. DanJS
    • one year ago
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    yes, so you have 1/8 of the total area

  18. anonymous
    • one year ago
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    I get it now. thx

  19. DanJS
    • one year ago
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    cool, welcome

  20. anonymous
    • one year ago
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    can you help me on another one?

  21. anonymous
    • one year ago
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    Using the following equation, find the center and radius: x2 + 2x + y2 + 4y = 20 The center is located at (1, 2), and the radius is 25. The center is located at (-1, 2), and the radius is 25. The center is located at (-1, -2), and the radius is 5. The center is located at (1, 2), and the radius is 5.

  22. DanJS
    • one year ago
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    complete the square on the x and y portions

  23. DanJS
    • one year ago
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    to get into form (x-h)^2 + (y-k)^2 = r^2

  24. DanJS
    • one year ago
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    center (h,k) and radius r

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