Let

denote the particle's position. Then its velocity is given by


The speed is then given by the absolute value/magnitude/norm of the velocity function,
Ah ok The property is
"The Addition Property of Equality"
The percent increase is 55.5556%
Answer:
D. 489
Step-by-step explanation:
489 has the number,
four - 4
eight - 8
and <em><u>ONE</u></em> nine - 9
<em>Hope this helps :)</em>