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by cpoolrn
Fri Apr 09, 2010 5:51 pm
Forum: Advanced Algebra ("pre-calculus")
Topic: ball thrown up w/ height above cliff base s=-16t^2+96t+144
Replies: 3
Views: 2654

Re: ball thrown up w/ height above cliff base s=-16t^2+96t+1

The question doesn't provide any values to plug into the equation. I am wondering if they are asking for me to set up the equations that will answer the questions, instead of the actual answer. I am taking the course through TTU by correspondance and I don't have an actual instructor to ask question...
by cpoolrn
Thu Apr 08, 2010 9:22 pm
Forum: Advanced Algebra ("pre-calculus")
Topic: ball thrown up w/ height above cliff base s=-16t^2+96t+144
Replies: 3
Views: 2654

ball thrown up w/ height above cliff base s=-16t^2+96t+144

A ball is thrown directly upward from the edge of a cliff in wuch a way that t seconds later, it is s=-16t^2+96t+144 feet above the ground at the base of the cliff. Sketch the graph of this equation (making the t-axis the horizontal axis) and then answer these questions: a. How high is the cliff? b....
by cpoolrn
Thu Apr 08, 2010 9:16 pm
Forum: Calculus
Topic: Need help w/ word prob: rental agency charges $40/day plus
Replies: 2
Views: 3958

Re: Need help w/ word prob: rental agency charges $40/day pl

Thank you! This problem came from my Calc I book, but they are reviewing Algebra.
by cpoolrn
Tue Mar 23, 2010 3:47 pm
Forum: Calculus
Topic: Need help w/ word prob: rental agency charges $40/day plus
Replies: 2
Views: 3958

Need help w/ word prob: rental agency charges $40/day plus

A certain car rental agency charges $40 per day with 100 free miles plus 0.34 cents per mile after the first 100 miles. First express the cost of renting a car from this agency for one day in terms of the number of miles driven. Then draw the graph and use it to check your answers to these questions...

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