curtis builds a doghouse with shaped like a cube and a roof shaped like a pyramid.The cube has ab edge length of 3.5.The height of the pyram

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curtis builds a doghouse with shaped like a cube and a roof shaped like a pyramid.The cube has ab edge length of 3.5.The height of the pyramid is 5 feet.Find the volume of the doghouse rounded to the nearest tenth. ASAP

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    2021-09-11T09:14:32+00:00

    The formula for the volume of a cube is Vlwh, where l is the length, is the width and h is the height.  The volume of our cube would then be V=3.5(3.5)(3.5)=42.875 ft.
    The formula for the volume of a pyramid is V = 1/3lwh.  For our pyramid it would be V=(1/3)(3.5)(3.5)(5)=20.417.
    The total volume is found by adding these two figures together:
    42.875+20.417=63.292≈63.3 ft after rounding to the nearest tenth.

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