Mathematics

代數分式小測4

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  • 1. Multiple-choice
    30 seconds
    1 pt

    已知 y=k(6n)y=k\left(6^n\right)  。若k=3及n=2,求 y 的值。

       

    36

    108

    324

    432

  • 2. Multiple-choice
    30 seconds
    1 pt

    已知 V=13r2hV=\frac{1}{3}r^2h  。若V=8及r=2,求 h 的值。

          

    332\frac{3}{32}  

    2

    6

    12

  • 3. Multiple-choice
    30 seconds
    1 pt

    已知 x+y8z=0x+y-\frac{8}{z}=0  。若x=-2及y=6,求 z 的值。

       

    -2

    14\frac{1}{4}  

    2

    4

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