作业帮For any cube,if the volume is V cubic inches and the surface area is A square inches,then V is directly proportional to which of the following 1 A2 A^23 A^34 A^三分之二5 A^二分之三
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For any cube,if the volume is V cubic inches and the surface area is A square inches,then V is directly proportional to which of the following 1 A2 A^23 A^34 A^三分之二5 A^二分之三
For any cube,if the volume is V cubic inches and the surface area is A square inches,then V is directly proportional to which of the following
1 A
2 A^2
3 A^3
4 A^三分之二
5 A^二分之三
For any cube,if the volume is V cubic inches and the surface area is A square inches,then V is directly proportional to which of the following 1 A2 A^23 A^34 A^三分之二5 A^二分之三
volume of a cube = side x side x side
如果V是立方体的体积,那么 V=A的3次方
如果你的选项3是A的3次方,就选3
设那么一个数，可以是长啊宽啊直径啊，反正单位是inches的那么个数，X
那么，A=k*X^2 >> kX=A^(1/2)
V=m*X^3 >> mX=V^(1/3)
因此A^(1/2)=n*V^(1/3)
因此V=(1/n)*A^(3/2)
对了嘛？
设该正方体的边长为X，所以X^2=A,所以X=A^1/2,然后体积V=X^3,就是（A^1/2)^3,就是A的二分之三次方~
一个面的面积是A 正方体一个面的面积是边长*边长=A 边长是A^（1/2） 体积是V=边长*边长*边长=[A^（1/2)]^3=A^(3/2）选E