Similar Products Reverb Price Guide Estimated Value for Vox AC30CC2X Custom Classic 2-Channel 30-Watt 2x12" Blue Alnico Guitar Combo on Reverb Includes material, year, finish $508-$984 $4 Past 30 Days Note: Estimate based on US sales prices for similar items on Reverb. Non-US regional ...
Seller Location:Everywhere New & Used Price Find a Deal $772.54 $772.54 + $662.46 Shipping Reverb Price Guide Estimated Value for Vox AC30CC2 Custom Classic 2-Channel 30-Watt 2x12" Guitar Combo on Reverb Filter by model Includes material, year, finish ...
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∴y=-2x+30 即y与x之间的关系是y=-2x+30. 故答案为:y=-2x+30. 点评本题考查了根据实际问题列一次函数关系式及三角形的三边关系的知识,读懂题意,根据实际意义列出关于两个变量之间的等式是求得函数关系式的关键.利用三角形的三边关系求得自变量的取值范围是常用的一种方法. ...
下列说法:(1)如图1.已知PA=PB.则PO是线段AB的垂直平分线,(2)对于反比例函数y=2x.是其图象上两点.若x1<x2.则y1>y2, (3)对角线互相垂直平分的四边形是菱形,(4)如图2.在△ABC中.∠A=30°.BC=2.则AC=4,(5)一组对边平行的四边形是梯形, (6)y=kx是反比例函数,(7)若一个等腰三角