Question

can anyone help me with solving problems with Exponential and Logarithmic

Answer 1

Yes where are the questions

Answer 2

yes

Answer 3

Solve this equation for x. Round your answer to the nearest hundredth.
0.59 = log x

Answer 4

assuming log is base 10

Answer 5

10^.59 = x

Answer 6

i got 3.890

Answer 7

that is correct... or so the calculator tells me :)

Answer 8

6 = In(x+4)

Answer 9

e^6 = x+4

e^6 -4 = x

Answer 10

399.427?

Answer 11

thats correct

Answer 12

now.. here is a type i'm stuck on

Answer 13

You invest $4200 in an account that pays an interest rate of 6.5%, compounded continuously.
Calculate the balance of your account in 10 years. round your answer to the nearest hundredth

Answer 14

to compound continuosly means we use pert for our answer..

4200(e^(.065)(10))

Answer 15

80452.680?

Answer 16

8045.271 is what i get... but i have no 'e' button

Answer 17

e generally equal 2.71828

Answer 18

2.71828182845905.... :)

Answer 19

4200(e^.65)

Answer 20

for that i got 8045.268

Answer 21

you got a choice of answers to go from?

Answer 22

no. i have to type in an answer

Answer 23

does the material you are working from give you an approximation for 'e' to use?

Answer 24

no but i searched it & was also told that almost every time e = 2.71828

Answer 25

4200 * (e^.65) = 8045.27148 when i type it into google, the calc pops this out...

Answer 26

id go with:

8045.27 or .28

Answer 27

i went with .27

Answer 28

nextt question:

holly wants to save money for an emergency. holly invests $1200 in an account that pays an interest rate of 4%.
how many years will it take for the account to reach $15,400? round your answer to the nearest hundredth

Answer 29

Remember to give amistre a medal if they helped you out!

Answer 30

was already planning on doing that

Answer 31

4% interest is SIMPLE INTEREST or COMPOUND INTEREST???

Answer 32

i really don't know. it doesn't say. some have said compounded continuously. but this one doesn't

Answer 33

they can also forget to give me a medal.... i got plenty to spare ;)

Answer 34

if its over a year, then compund interest is applied usually

Answer 35

Using Simple Interest, the time comes out way too long, must be Compound interest

Answer 36

savings accounts are usualy compounded yearly...

Answer 37

i do believe it is compounded

Answer 38

Pls check and reconfirm the numbers in the question. The given ones don't seem to b right

Answer 39

those are correct

Answer 40

The given numbers do not work for Compound interest

So, for Simple interest, the answer is 295.83 years (Way too long!!??)
This one beats me:(

Anyone else take a shot at it??

Answer 41

i'll post the question again as another question & see if anyone will answer it. i'm confused on these ones.