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sara1234
 2 years ago
HELP ME PLZ
sara1234
 2 years ago
HELP ME PLZ

This Question is Closed

seiga
 2 years ago
Best ResponseYou've already chosen the best response.1why dont u use mathway.com it helps?!

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0i know how to do this but i don't know why i keep getting a wrong answer?

seiga
 2 years ago
Best ResponseYou've already chosen the best response.1okay what did u get....go step by step.?

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0i got this 1.5159=(4+r)^(44)

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0can you show me what you did ?

seiga
 2 years ago
Best ResponseYou've already chosen the best response.1i was guessing lmao i hate math!

seiga
 2 years ago
Best ResponseYou've already chosen the best response.1wait i think i got it....wait

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0anyone can show me how to solve this? 2976.45=1963.45(1+r/4)^4(11)

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1You have an equation of the form: a = b(x^n) That will equal: a/b = x^n > ln(a/b) = ln(x^n) > ln(a/b) = n times ln(x) [ln(a/b)] / n = ln (x) e^( [ln(a/b)] / n ) = e^[ln(x)] = x "x" is your expression in parentheses, the 1 + a quarter of the rate.

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0what is that?? the formula i wrote is correct

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1Yes, your formula is correct and it matches mine. I am just using a general symbol method. For you to do some work here, you only have to make the substitutions and solve.

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0i dont understand that can you please just show me how to solve that formula i did it several times and got a wrong answer PLEASEE i beg you im so tired

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1You can do this! 2976.45=1963.45(1+r/4)^4(11) a = 2976.45, b = 1963.45, n = 44 Just make those substitutions and follow my solution method. Just plug in and follow the steps. Just try it. If you are that tired, I can give you a little more, but we tutors can't just give answers, we are required to show students how to solve and and top of it the students are supposed to do the work. I'll help as much as I can, but I can't just give ans answer.

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1Start by dividing both sides by what "b" is. It will start to isolate that exponential expression on the righthand side.

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0i didd this many timessss im telling youu i just want to see where i went wrong i end up with 1.5159=5+r

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0then 1.5159=5+r^44 im not sure about 5 than what do i doo

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1Good so far, keep going.

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1This is where you went wrong. And before I show you, I just quickly want to say that doing it this way, you will learn. If I just did the steps, no way is anyone going to learn. This is learning by mistakes. Don't be afraid of mistakes. Now, The (1 + r/4) has to stay in parentheses for quite a while. Always respect the parentheses. They take precedence over the exponentiation. If you don't like that long expression in parentheses, call it "x" for now.

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1So, I'll take over from here for a little while and give you a little break. Hold on while I type.

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.11.5159286 = (1 + r/4)^44 ln 1.5159286 = ln [(1 + r/4)^44] = 44 times ln [(1 + r/4)] (ln 1.5159286) / 44 = ln [(1 + r/4)] e^[(ln 1.5159286) / 44] = e^(ln [(1 + r/4)]) = (1 + r/4)

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1Are you still getting this or did you get lost anywhere along the way? Should I stop or go on?

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0i dont understand the way you type i have all the steps in my paper can you just give me the second to last line of this problem so i can see if its the same i get 1.0094=4+r

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0then i have to take away 4 from each side

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0i keep getting an negative number

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1ok, we'll do it that way. Hold on.

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.01.5159^1/44=4+r^1/44 this is where i can stuck putting it to the power of ^1/44 i get 1.0094 which idk is right or not please help me fast its late

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1e^[(ln 1.5159286) / 44] = e^(ln [(1 + r/4)]) = (1 + r/4) e^[(ln 1.5159286) / 44]  1 = r/4 4(e^[(ln 1.5159286) / 44]  1) = r The right side is the rate. The left side is: 0.03800011 That's 3.8%

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1That's the annual rate. It's 4 times the quarterly rate of: 0.9500028 percent.

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0so where did i go wrong

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1I know it's late and you're tired, so tomorrow, you might want to go over all of this. I strongly recommend this. Good working with you and thx for the recognition. More importantly, just hang in there! You went wrong by taking that 1 + r/4 out of the parentheses. That stays in there until the very end.

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1Fast? It's going to take me a while just to read it!

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1Well, I got problem #11, it's "b", not "c" like you have it, but you were not far off.

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1#12 is quarterly, not monthly. I don't think you are getting this just yet. You need to practice this a lot more.

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0these are practice problem i did like 50 and these are the ones i wasnt sure about

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0i just want to know which ones i need to practice more

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0how are 13 and 14 last two?

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0im sure about the rest just not these 4

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1You had #11 and #12 wrong and I got you right answers. I figured out #13 (didn't look at #14 yet). I need to see your work since you are not getting these right. Show me your work on #13.

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0my work is on paper its going to take me a while to type but i think 13 is okay

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1Yes, #13 is definitely 88.

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0for 14 i think its wrong

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1What is "n" and "an"? I don't get what those expressions mean. To do this problem, I need to know what "n" and "an" stand for.

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0thats what im trying to figure out

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1Not the values, what is the meaning of "n" and "an"? They stand for something even before we figure out the values.

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0i think n is number of cells and an is days or vise versa thats what im trying to figure out

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1Hold, on I figured it out algebraically.

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1I'm just trying to relate my answer back to the crazy notation in the problem.

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1You're going to have to help with relating the answer back to the problem's notation, but here it is in how I look at it: For any day, starting with the 3rd day, that day's number of cells is: [2 x (# cells in previous day)]  (# cells in previous to previous day) + 3 "previous day" is "day  1" "previous to previous day" is "day  2" Making sense?

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1I checked this answer out up to 88, which is day 7. Can you get this back into that crazy notation?

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0not really other than 1

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1Well, I know my formula works like a charm. We could try together to get that into the notation from the problem, but I still don't know about that "an" and "n". Are you sure that that problem was written down right?

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1While you're answering that, I'm working on that notation.

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0its A for sure thanks for your help

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1Yes, I just confirmed A. I figured out the notation, but you might want a bit of explanation on it.

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1I don't know where that post of yours went, I don't see it anymore, but A was correct, for sure.

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1Well! It looks like we're done! Nice working with you and good luck in everything!

sara1234
 2 years ago
Best ResponseYou've already chosen the best response.0Your so nice thank you so much please keep in touch please

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1And you're nice, too! You made my day! :)

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1btw, "an  1" is the # of cells in the previous day, but I think you know that by now.

tcarroll010
 2 years ago
Best ResponseYou've already chosen the best response.1And this was exhausting!
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