Answer:
14. 6 × 10^7
15. 6 × 10^14
16. 7.2 × 10^-7
17. 8.5 × 10^-2
18. 23 × 10^5, 6.9 × 10^6, 72 × 10^5
19. 1.89 × 10^-4, 2.5 × 10^-4, 19 × 10^-3
20. 3.125 × 10^-5
21. 3.1536 × 10^9
Step-by-step explanation:
14.
- (2 × 10^5)(3 × 10^2)
- (200000)(3 × 10^2)
- (200000)(300)
- 60000000
- 6 × 10^7
15.
- (1.5 × 10^5)(4 × 10^9)
- (150000)(4 × 10^9)
- (150000)(4000000000)
- 6e + 14
16.
- (6 × 10^-4)(1.2 × 10^-3)
- (0.0006)(1.2 × 10^-3)
- (0.0006)(0.0012)
- 7.2e-7
- 7.2 × 10^-7
17.
- (5 × 10^3)(1.7 × 10^-5)
- (5000)(1.7 × 10^-5)
- (5000)(0.000017)
- 0.085
- 8.5 × 10^-2
18.
- 72 × 10^5 = 7200000
- 6.9 × 10^6 = 6900000
- 23 × 10^5 = 2300000
- 23 × 10^5, 6.9 × 10^6, 72 × 10^5
19.
- 19 × 10^-3 = 0.019
- 2.5 × 10^-4 = 0.00025
- 1.89 × 10^-4 = 0.000189
- 1.89 × 10^-4, 2.5 × 10^-4, 19 × 10^-3
