Question

Prosze o zrobienie zad 10 i 11

Answer 1

10.
16=2^4
64=2^6
1024=2^10
2048=2^11
8^5=(2^3)^5=2^[15]
4^3 : 32^[-2] = 2^6 : 2^[-10] = 2^[6 - (-10) ] = 2^[16]
1/8 = 2^[-3]
(1/2)^3 = 2^[-3]
(1/128)^[-7] = 128^[7] = 7^[49]
2^7 + 3 * 2^7 = 2^7 ( 1 + 3) = 2^7 * 4 = 2^7 * 2^2 = 2^8

11.
12 * 10^[-7] km = 12 * 10^[-4] m
0,087 * 10^[-2] mm =  0,087 * 10^[-5]
12 * 10^[-7] dm = 12 * 10^[-8] dm
0,087 * 10^[-2] km = 0,87 km