精品偷拍一区二区三区,亚洲精品永久 码,亚洲综合日韩精品欧美国产,亚洲国产日韩a在线亚洲

  • <center id="usuqs"></center>
  • 
    
  • A ticket to a school dance is $8.Usually,300 students attend.The dance committee knows that for every $1 increase in the

    A ticket to a school dance is $8.Usually,300 students attend.The dance committee knows that for every $1 increase in the price of a ticket,30 fewer students attend the dance.What ticket price will maximize the revenue?
    英語(yǔ)人氣:647 ℃時(shí)間:2020-02-01 08:48:22
    優(yōu)質(zhì)解答
    set ticket price as x y=(300- 30(x-8)/1) * Xy=-30x的平方+540x+0寫(xiě)成頂點(diǎn)式y(tǒng)= -30(x-9)平方+2430in order to let y get the maximum value let X-9=0therefore when x=9,y has the maximum value 243011年級(jí)的...
    我來(lái)回答
    類似推薦
    請(qǐng)使用1024x768 IE6.0或更高版本瀏覽器瀏覽本站點(diǎn),以保證最佳閱讀效果。本頁(yè)提供作業(yè)小助手,一起搜作業(yè)以及作業(yè)好幫手最新版!
    版權(quán)所有 CopyRight © 2012-2024 作業(yè)小助手 All Rights Reserved. 手機(jī)版