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Mathematics 17 Online
OpenStudy (kwtjmtb26):

HELP PLEASE!!! MEDAL and FAN!! Fiber-optic cables are used widely for internet wiring, data transmission, and surgeries. When light passes through a fiber-optic cable, its intensity decreases with the increase in the length of the cable. If 1500 lumens of light enters the cable, the intensity of light decreases by 3.4% per meter of the cable.

OpenStudy (kwtjmtb26):

Part A: Can this situation be represented by a linear function? Justify your answer. (2 points) Part B: Write a function f(x) to represent the intensity of light, in lumens, when it has passed through x meters of the cable. (4 points) Part C: Some scientists are trying to make a cable for which the intensity of light would decrease by 5 lumens per unit length of the cable. Can this situation be represented by a linear function? Justify your answer and write the appropriate function to represent this situation if 1500 lumens of light enter the cable. (4 points)

OpenStudy (math.man07):

I thought light can't pass through cables

OpenStudy (math.man07):

can it

OpenStudy (math.man07):

The top and bottom of a rectangular prism are 4 inches long and 4 inches wide. What is true about the other faces (front, back, left, and right)?

OpenStudy (math.man07):

can you help with that Question

OpenStudy (kwtjmtb26):

It can through a fiber optic one. it is just a math question that I need help wiht.

OpenStudy (math.man07):

Ohh yeah

OpenStudy (kwtjmtb26):

I can't even focus right now, i have been trying to get help with this question for two days and nobody seems to know the answer.

OpenStudy (math.man07):

wow

OpenStudy (kwtjmtb26):

I know, I am trying to figure out your question, hold on. I would just love to get an answer for this.

OpenStudy (math.man07):

thanks

OpenStudy (kwtjmtb26):

I believe the answer is all four of the remaining faces will be 4 inches wide.

OpenStudy (math.man07):

I will try to help you too

OpenStudy (math.man07):

thanks

OpenStudy (math.man07):

I gave you a medal

OpenStudy (math.man07):

it would decrease by three lumens

OpenStudy (kwtjmtb26):

Can you do it in parts?

OpenStudy (math.man07):

one sec

OpenStudy (math.man07):

No

OpenStudy (kwtjmtb26):

LIke each question, Part A: PArt B: Part C:

OpenStudy (math.man07):

Ohh than yeah

OpenStudy (kwtjmtb26):

Okay, thank you!

OpenStudy (math.man07):

your welcome

OpenStudy (math.man07):

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OpenStudy (math.man07):

not so good at that

OpenStudy (math.man07):

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