Question

5，，7，，8，，9题

Answer 1

5B6B7B8A9C
9.解2y-1=1/2y-A
y=-5/3
-10/3-1=--5/6-A
A=3.5

追答

采纳我！

Answer 2

(1+10%)(1-10%)=0.99
B

追答

m/3-1+(2m-1)/3=0
m-4/3=0，m=4/3
C

A

2(-5/3-1/2)=1/2(-5/3)-m
m=7/2=3.5
C

Answer 3

5.B
6.B
7.C
8.A
9.C

Answer 4

BCCA

追答

求采纳，谢谢

？？

同学，请采纳，谢谢

Answer 5

B B B A C