\(\frac{7}{19}.\frac{8}{11}+\frac{7}{19}.\frac{3}{11}-\frac{26}{19}\)

\(=\frac{7}{19}.\left(\frac{8}{11}+\frac{3}{11}\right)-\frac{26}{19}\)

\(=\frac{7}{19}.1-\frac{26}{19}\)

\(=\frac{7}{19}-\frac{26}{19}\)

\(=\frac{-19}{19}=-1\)

A={14;25;36;47;58;69}

15 ngay

k mìh rồi mình giải cho

x - 4  =  6 

x      = 6 + 4 

x     = 10

vậy x = 10

254 nhé bạn

tk nhé

1/a+1/b=1*b/a*b+1*a/b*a=a/a*b+b/a*b=a+b/a*b

kết quả bằng 25

TỪ 105,115,125............ĐẾN 195 CÓ (195-105)/10+1=10 SỐ LẺ CHIA HẾT CHO 5

TƯƠNG TỰ 205 ĐẾN 295 CÓ 10 SỐ..............905 ĐẾN 995 CÓ 10 SỐ LẺ CHIA HẾT CHO 5

VẬY CÓ 9X10=90 SỐ LẺ CHIA HẾT CHO 5

I. Supply the correct form for the verbs in brackets

1. You ..............haven't tidied......................(not tidy) this room for weeks.

2. Listen to those foreigners! What language (speak)..are spoken.....................?

3. Exercises are said ........to be......................(be) good for you.

4. I'm used to.............driving......................(drive) in heavy traffic everyday.

5. Three million dollars .............were sent..................(send) to the victims in the tsunami last year.

dap an la 99090 day ban

kick minh nhe ban