1.若X:Y=5:3,则(X+3Y):(Y-X)=___________.2.在△ABC中,AB=5,BC=7,AC=4√2,则△ABC=_______.3.过反比例函数y=a/x(a≠0)的图象上任意一点P,做PA⊥x轴,PB⊥y轴,垂足分别为A.B,已知四边形OAPB的面积是6,求这个反比例函数
来源：学生作业帮助网 编辑：作业帮 时间：2024/09/09 10:43:24
xRKOQ+yP!!\; 'q3\51JH ѶbբF(BV6]4]uѻ9＾Ӊ״ca \C/(jJjXAӼDQ 'ыYl?>âT$[cIG+_Ȑ21(Nqvu ۏVlu:tujB[JUŃr-xU+Z7F/V
O '5rpۤw6UkDxz[p/S?_C
^?MszM[";<;+:'ƥt"_+]jz仴YuV([s!Q@pK89'2'
X `C!i%A f"fe$yf} d+n(O$VlrQN(KF:XprZ@jHx(d("e%bb,ϫh)oujv==>G]SV+O3B
T1?b`*8I2DsmUq(`swsk0 O@ͷdߍV)^[l_rc^^Q o|9@Yh*Rq@U\ū2rMO 4^8': C<oXknֳRq !_fSާ?C~ x0
若3x=5y,则x:y=________,(x-y):y=______
若3x-5y=0,则x+y/x=（）,x-y/y=（）,2x-3y/2x+3y=( )
若(x-y)/(x+y)=3 则(x+2y)/(6x-7y)等于
已知x/5=y/3,则(x/x+y)+(y/x-y)-(yxy/xxx-yxy)
(5)若x/2=y/3(y不为0）则x/y=____,x+y/y=___,y/x-y=___.
（x+y-5)*（x+y-5)+（x-y+3)=0 x*x-y*y
已知:3x-5y=0,求x/y,x-y/y,x-y/x
若x-y=3,则-x+5+y=( )
若5x+3y=3x+4y=x+2y+6,则x+y=___
若2x=3y,则(x*x+y*y)/x*x=?
若x:y=3则x:(x+y)=
若(3x-2y)/(x+y)=2/3,则3x/5y=
若x/y=4/3 则3x+2y/2x-5y=
若5X-8Y=0,则X+3Y/X-3Y=
若x和y互为相反数,则3x-10+3y+y/5x=
若x-y=5,(x+y)²=3则x²+y²=?
若X/Y=7/5,则Y-X/X+3Y=
若|x+y-3|+(x-y-5)^2=0,则x)^2-y^2=