If y varies inversely as the square of x, then when x is doubled y is
问题描述:
If y varies inversely as the square of x, then when x is doubled y is
a) multiplied by 4 b) divided by 4 c) increased by 4 d) decreased by 4 e) unchanged帮忙翻译一下 不懂啊
答
如果Y与X的平方成反比,则当X增大二倍时,Y:
a 乘以4
b 除以4
c 加4
d 减4
e 无变化
答案是b