No they cant not share the same y intercept.
Hey there!
The answer to your question is one zero.
To solve this, we can first start by finding the cube root.
![\sqrt[3]{1000}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B1000%7D)
The answer to this is
, because 
Now, we can see that there is one zero at the end of
.
Hope it helps and have a great day/night! Stay safe!
Their speed of separation will be equal to the sum of their speeds because they are in opposite directions.
Speed of separation = 40 + 50 = 90 miles per hour
Time = distance / speed
Time = 405 / 90
Time = 4.5 hours
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If you would like to simplify this equation, the only thing that you can do is simplify the radical.

=

Since 3 appears twice, we can factor it out of the radical. This gives us our answer of: