Question

a) Work out (5 x 10^3) x (9 x 10^7)
b) Work out (7 x 10^5) ÷ (2 x 10^2)​

Answer 1

Answer:a. (5 * 9) * (10^3 * 10^7)

45 * 10^3+7

45 * 10^10 = 4.5 * 10^11

b. 7 * 10^5/2 * 10^2

7 * 10^3/2

7 * 1000/2

7 * 500 = 3500 or 3.5 * 10^3

Step-by-step explanation: