0.045,1.3,2.65,0.975,3,3.5,3.05,5.75,0.0575,0.801,8.01,80.1化成百分数

0.045,1.3,2.65,0.975,3,3.5,3.05,5.75,0.0575,0.801,8.01,80.1化成百分数 8.9×0.045+0.89×0.42+0.089×1.3 如何简便计算 8.9×0.045+0.89×0.42+0.089×1.3怎样算简便? 解方程1.3x+4x=2.65 2.65*1.01-2.65简算 0.4,0.16,0.75,0.55,0.045,0.77,1.3,2.55把他们化成分数如果回答得好,加分 matlab怎么求曲线最大值x=0:0.01:pi*2;i=5.515*0.045*(1480*pi/30)^2*(cos(x)+0.2*cos(2*x));plot(x,i)hold onx=0:0.01:pi*2;f=(-pi*0.11*0.11*530000*(0.09*0.09./(0.09*0.09+0.045*1.05-0.045*cos(x)-0.045*0.05*cos(2*x))).^1.3).*(x>=0&x=0.977&x=pi&x=5.37 cosa等于0.975,a=? 6.73×26.5-2.65×65.3-2.65【简便运算】 1.3. 1.3. 13.35-4.68+2.65求简算! 3.75*1.25+37.5*0.975-o.375 简算 3.75*5/4+37.5*0.975-37.5% 3.7*0.25+37*0.975-0.37简便运算 0.975精确到十分位约是（ ） 已知某土壤的密度是2.65g/cm3,容重是1.3 g/cm3,该土壤的最大毛管含水率是20%问该土壤的非毛管孔隙度多少啊 已知某土壤的密度是2.65g/cm3,容重是1.3 g/cm3,该土壤的最大毛管含水率是20%,问该土壤的非毛管孔隙度是多