Question

Calculus 5 Questions Walk through 4 check 1?

Answer 1

1. B
2.
3.
4. C?
5.

Answer 2

I'll help with questions about concepts or ideas you have doubts on

Answer 3

I am not sure on 2 3 or 5 i am pretty sure i did 1 and 4 right. Can you help? and walk me through 2 3 and 5?

Answer 4

@mathstudent55 @robtobey @agent0smith @welshfella

Answer 5

@IrishBoy123

Answer 6

Im at a coffee shop( about to leave) and this would take to long. Ill be home in an hour and will check back

Answer 7

ok thanks!

Answer 8

question 4 looks good for C.

Answer 9

it's C for the one that goes \(y' = x(6+y)\). so you separate it, etc etc. so

but that is pretty sh1tty, just dumping all that crap here.

must do better !!!!!!!

Answer 10

lol so 1 and 4 look good. Can you guys walk me through 2?

Answer 11

@Zarkon

Answer 12

@ganeshie8

Answer 13

number 5 is exponential decay
half life is 1599 so we can write

M = 0.5M e^(-kt)

M = 0.5M e^(-1599*k)

from this you can calculate the values of k

then use the formula with t = 15000

Answer 14

- and 11 for the mass

Answer 15

so M=.5M e^(15000*k)

Answer 16

no
i got the masses wrong sorry

mass = half the original mass after 1599 years so its

0.5M = M e^(-1599k)

Answer 17

agree?

Answer 18

ok but we need to find 15000 years so take that and plug it into where -1599 is and then what?

Answer 19

but it would be -15000 right?

Answer 20

no you solve for k first using -1599 which is the half life

then use the value of k to find mass after 15000 years

Answer 21

Well using 11 as the mass like it says i got -.00043348

Answer 22

@Zarkon

Answer 23

k does work out to that

so required mass after 15,000 = 11 * e^(-0.00043349* 15,000)

Answer 24

ok let me do that real quick

Answer 25

what do you get for that?

Answer 26

that is false... You didn't list a variable and 15000 doesn't equal the opposite side.

Answer 27

what ??

the left side is the required mass

Answer 28

thats the variable

Answer 29

15,000 = 11 * e^(-0.00043349* 15,000) this is what u put did u mean to put an x where the 15000 is ?

Answer 30

work out the right side.

Answer 31

Then I got A or .0165

Answer 32

thats it

Answer 33

ok moving on to 2 and 3? Which one do u want to do first?

Answer 34

i gotta go right now . I#m sure you#ll get help from somebody

Answer 35

ok thanks for the help! You guys that are here do u want em to open another question with only i listed or do u want to keep it going here?