h = 1/2 . g . t²
h = 1/2 . 9,8 m/s² . (10 s)²
h = 4,9 m/s² . 100 s²
h = 490 m
Soal nomor 10
Ditanya nilai b dari 3^1500 + 9^750 + 27^500 = 3^b
31500 + (32)750 + (33)500 = 3b
31500 + 31500 + 31500 = 3b
34500 = 3b
b = 4500
Soal nomor 11
a. 36 x 34 = (3 x 3)(6 + 4) = 910
3(6+4) = 310
b. (t-3)6 = t(-3 + 6) = t3
= t(-3 x 6) = t-18
Soal nomor 12