The answer of 0.000045 in standard form is

1.	The answer of 0.000045 in standard form is
A.	4.5 x 10-6 `
B.	4.5 x 10-7 `
C.	4.5 x 10-5 `
D.	4.5 x 10-4 `
Answer» D. 4.5 x 10-4 `

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