Question

$0.00000000837$ is expressed in its standard form as $x.37\times {10}^y$, where $x$ and $y$ are integers. Express the number $y\times {10}^x$ in its normal form.

• A. $-900000000$
• B. $900000000$
• C. $-90000000$
• D. $90000000$

Answer 1

The correct option is A $-900000000$

In standard form, $0.00000000837$ is expressed as $8.37\times {10}^{-9}$.
$x=8,y=-9$
$-9\times {10}^8=-900000000$