Asked by Liz

A car passes by a certain point at time t = 0 hours heading east at 40 miles per hour. At t = 1 hour another car passes by the same point heading north at 50 miles per hour. What is the functiuonthat equals the distance between the two cars?

Answers

Answered by bobpursley
distance= sqrt[(40t)^2+(50(t-1))^2 ]

check my thinking.
Answered by Liz
The answer has to be one of the following:
a. L=90t-50
b. L= sqrt(4100t)
c. L= sqrt(4100t^2 +5000t +2500)
d. L= sqrt(4100t^2-5000t + 2500)
e. L= sqrt(90t-50)
Answered by bobpursley
And, it is one of those. Can you not do the algebra?
Answered by Anonymous
just simplify what bob put you'll get D!

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