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Algebra 14 Online
OpenStudy (anonymous):

Can someone help me!!? Fiber-optic cables are used widely for wiring in aircraft and submarines. When light passes through a fiber-optic cable, the intensity of light decreases by 2.5% per meter of the cable. Part A: can this situation be represented by an exponential function? justify your answer. Part B: Write a function f(x) to represent the intensity of light, when it has passed through x meters of the cable. Part C: Some scientist are trying to make a cable for which the intensity of light would decrease by 3 lumens per unit length of the cable. Can this situation represented by an ex

OpenStudy (anonymous):

exponential function? Justify your answer and write the appropirate function to represent this situation if 1200 lumens of light enter the cable.^^^^^^^^

OpenStudy (anonymous):

@Hero i just need the answer right now. i've been working on it all day

hero (hero):

Yes, I understand. I know you're working hard, but we still can't just give you the answer. Sorry.

OpenStudy (anonymous):

ok. But how long do you think it will take to do this question? @Hero

OpenStudy (anonymous):

can you still help me then? @Hero

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