Câu 1 nào???

X=1

2:y=1

Y=1/2

Bằng 40° dùng ít tính chất của TG cân là ra

Lỗ 30 đô?

Vì số quá lớn nên cứ ghi 6\(^{ }\)¹⁹ thôi

hi friend, today i'll talk about my leisure activities with my friends.I often hangout with friends, that's one of my favorite leisure activities, it gives me a feeling of relaxation, At the same time, it also helps me come into contact with fresh air. but i can spend about one-two hour to play games with my friend, that activities is so funny, sometime i can't stop laugh when i see a funny moment with my friends. so, that all of today, goodbye and see ya!

1. I usually have free time in the evening

2. I often hang out with friends

3. because i feel it good and relaxing

M x 1 bằng m nhed

a) 25 : x = -3

           x = 25 : -3

           x = 8,333

b) 27.(x + 1) = -243

              (x + 1) = -243 : 27

              (x + 1) = -9

                          x = -9 + 1

                          x = -8

a) = 99 - (74 - 129) : 5 + 1

    = 99 - -55 : 5 +1

    = 99 - -11 + 1

    = 110 + 1

     = 111

b) (-35) + 127 + (-65) + 73 = (-35 + -65) + 127 + 73

                                           = (-100) + 200

                                           = 100