mohon bantuan nya terimakasih

1. Ket : A = angka
B = gambar
A = {(AAA),(AAG),(AGA),(AGG),(GAA), (GAG),(GGA),(GGG)} ----> n(A) = 8
B = {(AAA)} ----> n(B) = 1
P(B) = 1/8

2. 4+15+36+70+72+36+70
----------------------------------
1+3+6+10+9+4+7
283
= --------
40
= 7,075 = 7,1

5.
[tex] \sqrt{32} - \sqrt{2} + \sqrt{128} [/tex]
=
[tex] \sqrt{16 \times 2} - \sqrt{2} + \sqrt{64 \times 2} [/tex]
=
[tex]4 \sqrt{2} - \sqrt{2} +8 \sqrt{2} [/tex]
=
[tex](4 - 2 + 8) \sqrt{2} [/tex]

=
[tex]10 \sqrt{2} [/tex]
hanya itu yang saya tau