Question

WILL FAN AND MEDAL!!!!! A computer takes 3x^2+2 milliseconds to process a certain program. If the program has 4 lines of static code (this will always be required for the codde to run) and x variable lines, what is the average amount of time it takes to process each line?

Answer 1

choices are
A.) 3x-2
B.) 3x-12+(in fraction form) 50/x+4
C.) 3x-12-(in fraction form) 50/x+4
D.) 3x^2-12x+50

Answer 2

@hartnn @DiamondBear3299 @dtan5457 @ayyookyndall

Answer 3

@Directrix

Answer 4

@Loser66

Answer 5

@Compassionate @SithsAndGiggles @bibby

Answer 6

@misty1212

Answer 7

is that the complete question?

Answer 8

yes

Answer 9

ive never heard of these kind of problems I'm helping my boyfriend with his math and idk how to do it

Answer 10

I see, the problem i have with the wording of this question is that it doesn't define what x is when it says that it takes the computer 3x^2+2 milliseconds. Do you happen to know what x is? Is it the number of lines of code in the program?

Answer 11

http://contentlaunch.ple.platoweb.com/ed/Assessment/3976240/45135569/29368627/aHR0cHM6Ly9wb3J0YWwucGxlLnBsYXRvd2ViLmNvbS9MZWFybmVyL0hvbWUvTGVhcm5pbmdQYXRoLzI5MzY4NjI3

Answer 12

that's the whole problem i dont see where it says what x is

Answer 13

unfortunately i cannot sign in to that service, it would be easier to take a screen shot and then post the image here.

Answer 14

oh ok umm how do i take a screenshot

Answer 15

are you on a mac, windows, or linux?

Answer 16

i have windows and im currently on google chrome

Answer 17

ok so you should have a button on your keyboard that says "print screen", sometimes it is abbreviated as "PrtSc"

Answer 18

ok i see it

Answer 19

alright so press it and it should make a copy of your screen, then open some program such as paint or word and paste the image in there, by pressing ctrl+v or going to edit and selecting paste.

Answer 20

saving that file and then attach it to this conversation and i will take a look at it, make sure that when you press "print screen" that the image of your question is visible.

Answer 21

*save

Answer 22

ahh I see its a poorly worded question but I think that it is assuming that x is the number of lines, hold on, let verify that this assumption is correct by doing the problem.

Answer 23

ok

Answer 24

so how exactly do we start this problem?

Answer 25

ahh ok so i was wrong.

Answer 26

sorry it took so long. but I do have the correct answer now

Answer 27

so x is the amount of variable lines

Answer 28

ook so we know what x is

Answer 29

ill brb gotta help my mom but i will be back if you can explain that would be great

Answer 30

we would like to solve for the average amount of time it takes for each line to be process, so what we really would like to solve is this:

\[average~time = \frac{total~time}{number~of~lines}\]

Answer 31

so we are given the total time it takes the program correct? It's simply given. So:
\[total~time = 3x^{2} +2\]
we know that the number of lines in the program is x+4 right? Since there are x - variable lines and 4 static(or consistent lines) and thus the total number of lines is x+4. So:
\[number~of~lines = x+4\]

Answer 32

we can now put these two equations into our first equation to get the average time it takes for the computer to process each line. So:
\[average~time = \frac{3x^{2}+2}{x+4}\]
This is a fine/good answer to give as a solution, however looking at our answer choices (since this is a multiple choice question) we can see that it is not one of the choices. So we either must transform or answer into one of the answers or transforms the answers into a similar form to our answer.

Answer 33

Does all of this make sense thus far?

Answer 34

I am going to continue with the explanation, if you have any questions or issues feel free to interrupt me or ask it at the end of it.

Answer 35

So glancing at our choices we can immediately rule out answer choice a and d because our numerator is definitely not divisible by our denominator. In other words x+4 is not a factor in 3x^2+2.

Answer 36

ok it makes sense would i divide like setting up with the x+4 on the outside and put the 3x^2+2 on the inside of the dividing symbol

Answer 37

clarify what you mean by outside and inside?