为数学JJ整理人分担任务 有问题砸过来

wong68508

197.    5MingLiU","serif"; mso-bidi-font-family: Arial; mso-ascii-font-family: Arial; mso-ansi-language: DE; mso-fareast-language: ZH-TW;">、一家店賣某個商品，第一年毛利500MingLiU","serif"; mso-bidi-font-family: Arial; mso-ascii-font-family: Arial; mso-ansi-language: DE; mso-fareast-language: ZH-TW;">，第2MingLiU","serif"; mso-bidi-font-family: Arial; mso-ascii-font-family: Arial; mso-ansi-language: DE; mso-fareast-language: ZH-TW;">年成本上漲10%MingLiU","serif"; mso-bidi-font-family: Arial; mso-ascii-font-family: Arial; mso-ansi-language: DE; mso-fareast-language: ZH-TW;">，問第2MingLiU","serif"; mso-bidi-font-family: Arial; mso-ascii-font-family: Arial; mso-ansi-language: DE; mso-fareast-language: ZH-TW;">年的毛利比第一年上漲嗎？

MingLiU","serif"; mso-bidi-font-family: Arial; mso-ascii-font-family: Arial; mso-ansi-language: DE; mso-fareast-language: ZH-TW;">（1MingLiU","serif"; mso-bidi-font-family: Arial; mso-ascii-font-family: Arial; mso-ansi-language: DE; mso-fareast-language: ZH-TW;">）售價提高10&

MingLiU","serif"; mso-bidi-font-family: Arial; mso-ascii-font-family: Arial; mso-ansi-language: DE; mso-fareast-language: ZH-TW;">（2MingLiU","serif"; mso-bidi-font-family: Arial; mso-ascii-font-family: Arial; mso-ansi-language: DE; mso-fareast-language: ZH-TW;">）忘記了，反正是第一年產量及銷量與第二年的產量和銷量的關係

MingLiU","serif"; mso-bidi-font-family: Arial; mso-ascii-font-family: Arial; mso-ansi-language: DE; mso-fareast-language: ZH-TW;">

(1):10& 是指10元還是10%..

GMATdeJULY

求助两道PREP:

1.直角坐标系上，圆C过（-4，0),(4,0)两点，问圆C半径最大值？答案有4，2，0什么的，还有个无最大值（难道半径不是确定是4吗?!）

2.3俩红车，1俩蓝车，1俩黄车停5个车位，问多少种可能，车子除了颜色，没有任何差别。（这题过程能说下吗？我脑子饶了..)

edogawaconan

支持一下~