Question

Algebra ll B Question

Answer 1

i am not sure about this one can the answer be that short really?

Answer 2

@kittiwitti1 @pooja195

Answer 3

answers?

Answer 4

hello?

Answer 5

@will.h

Answer 6

well bye

Answer 7

@jonathan34 i was away you know how to solve that?

Answer 8

ok back

Answer 9

i think i do

Answer 10

shoot

Answer 11

answers?

Answer 12

just tell me if my answer right or wrong and if wrong what's the right and if neither then what should i add to make it correct

Answer 13

ok np

Answer 14

give me your answer please

Answer 15

what grade?

Answer 16

@kittiwitti1 help dude

Answer 17

looks ok but you know the meaning of X?

Answer 18

I was here but I left... I mean I did respond to your request on your other question.

And I'm not a dude, lol

Answer 19

yeah i know everything i just can't beleve the asnswer is that short

Answer 20

looks tricky right? lol

Answer 21

@kittiwitti1 Lol sorry

Answer 22

i cant find nothing wrong with it

Answer 23

okay i have couple more you think you can help?

Answer 24

well you did the fraction but...... what the answer you never but it?

Answer 25

ok

Answer 26

what grade is these looks so familiar

Answer 27

Algebra ll Part B i hate it

Answer 28

:O idk lol

Answer 29

@Vuriffy

Answer 30

@misty1212

Answer 31

Thanks for trying

Answer 32

@jonathan34 may u come and help me after ur done?

Answer 33

ok bye will that was to hard for me

Answer 34

still with the same question lmaf lol

Answer 35

idk it good luck

Answer 36

Thanks

Answer 37

@mathmale

Answer 38

@marvin456 @misty1212 @MonkeyAGF @michaelschmidt @Atsie

Answer 39

these ppl will help

Answer 40

peace

Answer 41

Thanks @jonathan34

Answer 42

Hi Mathmale to avoid confusion let's start With Tommy question

Answer 43

i was just gonna tag you lol

Answer 44

So Math male let's make this quick and smooth i have 2 modules to finish and deadline is 3 days from now lol

Answer 45

Hello, Will! I'd much prefer to focus on YOUR question and work with this Tommy separately and later.

Answer 46

Okay i will do the other lessons what time will you be on

Answer 47

You have probably seen functions that look like this:\[A=P(1+r)^t\]
Look familiar? can you remember what this formula is for?

Answer 48

Yeah when calculating the interest and all that it is exponential function

Answer 49

sorry, we have a misunderstanding here. I didn't recognize the name Tommy, so did not realize you were discussing the problem at hand.

Answer 50

correct: That's an exponential function, for compound interest.

Answer 51

Lool Mathmale i like how you think deeply

Answer 52

It's great to be liked!

Answer 53

Are we solving Tommy or Tony?

Answer 54

Look at \[A=P(1+r)^t\]

Answer 55

and identify what P represents.

Answer 56

P is the principal normally and it is the initial number

Answer 57

Just "principal." No "initial number." Right you are. The rest of that function is an exponential, correct?

Answer 58

yes

Answer 59

Which math operation was performed on P and on (1+r)^t to obtain P(1+r)^t?

Answer 60

multiplication

Answer 61

Yes. But in your response to this question, you've chosen addition instead of mult.

Answer 62

i don't understand what problem are we solving

Answer 63

Think: what specifically does h(t)=350 represent?

Answer 64

http://assets.openstudy.com/updates/attachments/57cec1dbe4b0948881946eac-will.h-1473167871221-5.png

Answer 65

that's the money he has and i chose multiplication because there would be the total money after interests

Answer 66

sorry addition i mean

Answer 67

Multiplication is the correct operation, but your response used addition.
Why would addition be correct instead of mult.?

Answer 68

In the familiar formula\[A=P(1+r)^t\] do you see P being added to the expo function or multiplied by the expo function?

Answer 69

Correct it is multiplied but i thought that we would add the functions to get the total profit i didn't thought of it as both functions multiplied that's genius because p is indeed represent the investment he has

Answer 70

Right. h(x) = P here, and both represent the initial amount of money Tommy has.

Answer 71

So, toss out the ADDITION and substitute MULT. as you work on the given problem.

Answer 72

\[m(x) = 350(1.04)^(x-1)\]

Answer 73

Yes. I'd start out by writing \[m(x) = h(x)*s(x) \]

Answer 74

and then subst. $350 for h(x) and \[(1.04)^{x-1}\]for s(x).

Answer 75

so the last thing to say is the expression i wrote correct?

Answer 76

If you agree, please explain what quantity this new function m(x) represents.

Answer 77

the interest is growth clearly and x is time and p is 350

Answer 78

Unfortunately not, Will. I'm looking at your initial response, which included addition instead of mult. Please type out the new version of your response.

Answer 79

The name of this function is "compound amount." You invest principal P (or h(x)) up front and leave the funds ini the bank for x years. The result is the AMOUNT you will have accumulated over x years; that includes both principal and interest.

Answer 80

okay here's the new response

We have to multiply both functions to create a function that represent the total profit after x time

\[m(x) = h(x) * s(x) \]
\[m(x)=350(1.04)^(x−1)\]

Answer 81

Please note that the commonest form of this formula for compound amount is \[A=P(1+r)^t\]

Answer 82

I frankly do not know why the exponent in the given problem is x-1.

Answer 83

me neither i was gonna ask you why tho

Answer 84

Why do you use the word "profit" here, when it's not mentioned in the orig. probl.?

Answer 85

because it would be profit investing is making profit after all

Answer 86

the correct term is "compound amount." You invest principal P for x years, and A represents the amount, incl principal and interest, that you would have at the end of x years.

It will save you a lot of trouble if you stick strictly to the definitions of words such as "profit," "amount," "principal," etc. Do not make up or borrow other words to use.

P

Answer 87

Profit in business has a whole different meaning:

It's the difference between the revenue ($ taken in when something is sold) and the costs (the $ you have to spend to run your business).

Answer 88

That's smart i'd go with compound principal then

Answer 89

More precisely, P(x) = R(x) - C(x):

Profit is the difference of revenue and costs: Subtract costs from revenue. NO bearing on the problem at hand.

And sorry, not compound principal; you mean "compound amount" when interest is compounded periodically.

Answer 90

Don't get mad if I suggest you write down these terms and make certainl you can define them correctly.

Answer 91

Lol No that's just Smart to know the right terms i don't think teachers focus on it much but yeah it would be better to use the right ones

Answer 92

So, once again (a quiz for you):

Explain in words the name and purpose of \[A(x)=P(1+r)^x\]

Answer 93

Review our discussion before you respond.

Answer 94

p is the principal r is the rate of either growth or decay and x is time and A(x) would be the compound amount