数学高手啊着急在线等请大家帮帮我thevoltage,Vvo-查字典问答网

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　　数学高手啊着急在线等请大家帮帮我thevoltage,Vvolts,inanelectricalcircuitisgivenbytheformulaV=IR,whereRohmsisthetotalresistanceofthecircuitandIampsisthecurrentflowinginthecircuit.ifR=6andI=4,each

　　数学高手啊着急在线等请大家帮帮我

　　thevoltage,Vvolts,inanelectricalcircuitisgivenbytheformulaV=IR,whereRohmsisthetotalresistanceofthecircuitandIampsisthecurrentflowinginthecircuit.ifR=6andI=4,eachbeingcorrectto1significantfigure,calculatethemaximumandminimumvalueofV.

　　Thedimensionsofthetriangleshownareknowtoanaccuracyof1cm.Calculatethemaximumandminimumvalueoftheperimeterofthetriangleandthepercentageerror.

　　Afunctionisdefinedbyf(x)=35-ax3(ax的立方),where0小于等于x小于等于2.thevalueofaisknowntobe3.6+-0.2.findthemaximumandminimumvalueanderrorincalculatingf(1),thatisf(x)whenx=1.

　　UsingtheformulaV=派r平方(H-h),andyourcalculatorvalueof派,calculatethevalueofVwhenr=4.26,H=21.58andh=14.35.givethefullcalculatordisplay.giveyouranswertotwodecimalplaces.giveyouranswertotwosignificantfigures.

　　Thespeedofsoundinairisgivenas300ms-1.howmanymetresdoessoundtravelinairinonehour?Expressyouranswertocorrecttotwosignificantfigures.

　　要过程谢谢大家了答的好给加分

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2020-06-1517:39

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马劲松

　　1.最大值V=IR=4.5*6.5=29.25最小值V=3.5*5.5=19.252.假设三边长度是abc那么周长最大值是(a+b+c+1.5)cm最小值是(a+b+c-1.5cm)误差为1.5*100/(a+b+c-1.5)%3.已知f(x)=35-ax3(ax的立方),0≤x≤2,a=3.6±2（就是3.4...