题目内容：

(-22%-17%)的平方乘以0.1的平方根怎么算怎么写呀?
根号下面的数字：(-22%-17.4%)^2×0.1+(-2%-17.4%)^2×0.2+(20%-17.4%)^2×0.4+(35%-17.4)^2×0.2+(50%-17.4%)^2×0.1
所有的根号乘以100%＝多少?
^2表示平方

优质解答

(-22%-17%)^2*0.1^(1/2)
=(-39%)^2*0.1^(1/2)
≈0.1521*0.316
≈0.048