Question

Yang jenius tolong ya dijawab.makasih banyak


#PAKAI CARA/JALAN

Answer 1

Semoga membantu yaaa...

Answer 2

a. (5 x 10^2) x (3 x 10^2) =

5 x 3 x 10^(2 + 2) =

15 x 10^4

b. (7,2 x 10^-3) x (4 x 10^5) =

7,2 x 4 x 10^(-3 + 5) =

28,8 x 10^2 =

288 x 10^1

d. (1/2)^(n - 2) = 4

(2^-1)^(n - 2) = 2^2

2^(-n +2) = 2^2

-n + 2 = 2

-n = 0

n = 0

e. 5^(n - 1) = 125

5^(n - 1) = 5^3

n - 1 = 3

n = 3 + 1

n = 4

f. (1/9)^(4n - 5) = 27

(1/3^2)^(4n - 5) = 27

(3^-2)^(4n - 5) = 3^3

3^(-8n + 10) = 3^3

-8n + 10 = 3

-8n = 3 - 10

-8n = -7

8n = 7

n = 7/8

^ : pangkat

semoga membantu:)