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Unformatted text preview: 3x 4 + 2x 3 – 4x 2 + 9x – 14 #30 This is a word problem, and from the word problem, we need to identify our important information. Anything not mentioned below is just (what I call) fluff. We have an equation for the height of an object as: h + vt – 4.9t 2 From this equation, we are told that h = initial height which will be 140 meters v = velocity or speed of item which is 60 t = time which is 3 seconds. We are asked to find the height at time 3 seconds. So we plug each of these into the equation to get 140 + 60(3) – 4.9(3) 2 Follow order of operations Exponents 140 + 60(3) – 4.9(9) Multiply 140 + 180 – 44.1 Add and subtract from left to right 275.9 meters is the height at time 3 seconds....
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This note was uploaded on 08/17/2011 for the course MAT117 MAT 117 taught by Professor Ranjitrebello during the Spring '09 term at University of Phoenix.
- Spring '09