Express the product of 0.00043 and 2000 in standard form.
A
8.6 x 10-3
B
8.3 x 10-2
C
8.6 x 10-1
D
8.6 x 10
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
0.00043 x 2000
= 43 x 10-5 x 2 x 103
= 43 x 2 x 10-5+3
= 86 x 10-2
= 8.6 x 101 x 10-2
= 8.6 x 10-1
Source: Myschool Past Questions Archive (Record #26998)