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Category: Calculus and Above
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# Doing math howerwork and i am stuck. due at 12:00 central

### Customer Question

doing math howerwork and i am stuck. due at 12:00 central time. need help!
f(x)=1/5e^-4x
Submitted: 9 months ago.
Category: Calculus and Above
Expert:  Mr. Glenn replied 9 months ago.

Hi

Thank you for using this site, how many questions do you have in all? Please reply asap

Expert:  Mr. Glenn replied 9 months ago.

Also, what is the actual question here? there is no question posted yet, only a given function.

Customer: replied 9 months ago.
17 to 18. I might be able to figure some out on my own, but i need help one others. i;m big tipper
Expert:  Mr. Glenn replied 9 months ago.

Can you post first all these (18) complete questions? If you have a word file, it would be better attaching the file.

Customer: replied 9 months ago.
okay!
3.(x^7)e^5x
4. A company's toatl cost in millions of dollars is given by C(t)=130-70e^-t where t is the time in years since the start up date. The graph of C(t) is shown to the right. FInd the following.
4(A). the marginal cost, C'(t)
(b). C'(0)
(c). C'(4)
(D) find lim t->infinite C(t) and lim t-->infinite C'(t)
will send rest through word document
Expert:  Mr. Glenn replied 9 months ago.

ok

Expert:  Mr. Glenn replied 9 months ago.

Btw, how many hours from now is the deadline? I am from another time zone, sorry.

Customer: replied 9 months ago.
hour and a half
Expert:  Mr. Glenn replied 9 months ago.

Customer: replied 9 months ago.
no we can not
Customer: replied 9 months ago.
it's timed
Expert:  Mr. Glenn replied 9 months ago.

Please post all the questions asap, as there are no more time left, there are no questions posted aside from Q3 and Q4

Customer: replied 9 months ago.
can't get word document to upload due to subscription running out. i posted some below9)S^a=N=logs(s being lower than log)?=? Convert to logarithmic equation10)use log b 3(b is lower than log) = 1.099 and or log b 8 = 2.079 to find log b 2411) g(x)=e^x(lnx^2) differentiate12) f(x)=ln(e^6x(+6) six being added to e. Differentiate13) solve e^x=5 for x
Expert:  Mr. Glenn replied 9 months ago.

What is the question for number 3? (Q3) it only tells 3.(x^7)e^5x but there is actually no question given

Customer: replied 9 months ago.
differentiate
Expert:  Mr. Glenn replied 9 months ago.

Also do I need to show complete solution? or just the final answer? since typing the complete solution will take longer time

Customer: replied 9 months ago.
just the solution
Expert:  Mr. Glenn replied 9 months ago.

do you mean just the final answer? (not the complete solution?)

Customer: replied 9 months ago.
Expert:  Mr. Glenn replied 9 months ago.

ok, how about the other questions?

Customer: replied 9 months ago.
can't copy paste have to type them.14) a model for consumers’ response to advertising is given by the equation N(a)=1900+500 ln a, where N(a) is number of units sold, a is the amount spent on advertsing in thousands of dollars and a>=1. Complete (a through (d
How many units were sold after spending \$1000 on advertising?
N’(a) and n’(10)
Find the maximum value, if it exists. And Find the minimum value if it exists
Find lim N’(a) does it make sense to spend more and more dollars on adverstising15) the growth rate for the demand for oil in a particular country is 3% per year. When will the demanded be double that of 2012In 2004 an art collector paid \$108,467,000 for a particular painting the same painting sold for \$28,000 in 1950 complete parts a through d
Find the exponential growth rate k to three decimal places and determine the exponential growth function V, for which V(t) is the painting’s value in dollars, t years after 1950. K=?
Predict the value of painting in 2012
What is the doubling time for the value of the painting?
How long after 1950 will the value of the painting be \$1 billion?
Expert:  Mr. Glenn replied 9 months ago.

12) f(x)=ln(e^6x(+6) here, is the exponent of e is only 6x?

like this? f(x)=ln[e^(6x) + 6]

Customer: replied 9 months ago.
yeah like that
Customer: replied 9 months ago.
16) of an intial amount of 4000 g of lead-210 how much will remain in 170 years? lead -210 decays at a rate of 3.15%/yr17)The demand D(x), and supply S(x) functions for a certain type of multipurpose printer are as follows. Find equilibrium point. Assume that x is the price in dollars
D(x) = q= 490e^-0.003x
S(x)=q=150e^0.005x
Customer: replied 9 months ago.
18)g(x)= x^6(2.6)^x differentiate19)y = 3^(x^5 +4) four being added to x20) y = log 8 x (8 being lower than log) differentiate21)g(x)= log 47 (47 lower than log) (5x-2)
Customer: replied 9 months ago.
that's all of them
Expert:  Mr. Glenn replied 9 months ago.

OK

Expert:  Mr. Glenn replied 9 months ago.

will be back in less than 1 hr maybe, need to focus on this,

Customer: replied 9 months ago.
time runs out in 52 minutes
Customer: replied 9 months ago.
34 minutes
Customer: replied 9 months ago.
25
Customer: replied 9 months ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Customer: replied 9 months ago.
10
Customer: replied 9 months ago.
just give me what you got
Customer: replied 9 months ago.
where you at?
Customer: replied 9 months ago.
three minutes. why log off?
Expert:  Mr. Glenn replied 9 months ago.

Hi can you accept the small offer below?

Expert:  Mr. Glenn replied 9 months ago.

Hi, I did not log off, I came exactly 1 min, after your last post so I am still 3 mins before the deadline

Expert:  Mr. Glenn replied 9 months ago.

Do you still need answers for these?