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Tutors Answer Your Questions about Exponential-and-logarithmic-functions (FREE)
Question 1963: in an attempt to discreadit the persident, a member of the opposite political party wishes to start a scandakous rumor about him. he plans to tell people this rumor one week before the election day and wants the entire population of the united staes (that's 250,000,000 people!) to know the rumor. he needs to figure out how many people he should tell (and they each will tell the same number of people) so that everyone will have heard the rumor by the seventh day.
Click here to see answer by longjonsilver(2297)   |
Question 1960: Burton High has 1500 Students. During 1st period, a rumor is started when susan tells a secret. each of susans three friends tell three of thier friends during second period , who in turn tell three different friends during third period. assume each person tells the rumor to only three others.
find the number of students who have heard the rumor at the end of the day.( burtin has 6 periods)
Click here to see answer by longjonsilver(2297) |
Question 9820: the work has to do with finding function values
if f(x)=3x^2+x-2 and h(x)=7x+3, find each value
1. f(5)
2. h(-4)
3. 2[f(-1)]
4. f(3)-h(2)
5. 4[h(1/2)]
6. f(a)+h(a)
7. Hi-Tech Inc. is a consulting company that charges $750 up front plus475 for each day computer training.
a.write an equation in functional notation that describes the cost of hiring the consulting company for d days of employee training.
b. what would the cost be if you hired the consulting copany for three days of training.
c. another training company, software specialists group, provides computer training for a flat rate of $600 per day. Which company offers the better deal if you need 7 days of employee computer training? how much would the training cost?
this is an Algebra II class
I hope somebody would help me this is due tomorrow thank you
sincerely bruce garcia
Click here to see answer by rapaljer(3620)  |
Question 10739: use ln key on calculator to express each number as a power. then use the rules of exponents to find the answer.
(0.000612)(576)
________________
0.0512 X 10 -14
the top two numbers multiplied, then divided by bottom decimal number times ten to the negative fourteenth power.
tried:
0.000612 = e to the negative 7.40
576 = e to the 6.36
0.0512 = e to the negative 2.97 times 10 to the negative power of 14
add exponents together -7.40 + 6.36 +2.97 = e to the 1.93 times ten to the 14th.
on calculator, 1.93 inverse ln = 6.89
so answer is e to the 6.89 times 10 to the power of 14.
Click here to see answer by longjonsilver(2297) |
Question 12558: The question:
An open top box is to be made by cutting a square from each corner of an 11" x 14" sheet of metal and folding up the tabs. The box is to have a volume of 80 cu inches. Apporoximate to the nearest tenth of an inch the size of the square that must be cut out.
I see it as: (14x-2x)(11-2x)(x)=80 cu in. Which results in 4x^3-50x^2+154x=80
I don't understand how to complete this? I am not sure how to deal with the x^3. Can you help?
Click here to see answer by AdolphousC(70) |
Question 16664: ok i can not for the life of me figure this answer out. ive tried asking all my friends and family and they cant either! this question is really hard and its going to be on the test tuesday! can you help???
the problem is....
( n is the exponent)
can you help? i'll be forever grateful!
lil miss helpless
Click here to see answer by rahman(247)  |
Question 16663: ok i can not for the life of me figure this answer out. ive tried asking all my friends and family and they cant either! this question is really hard and its going to be on the test tuesday! can you help???
the problem is....
( n is the exponent)
4^ (n+3) x 16 ^ n= 8^(3n)
can you help? i'll be forever grateful!
lil miss helpless
Click here to see answer by rahman(247) |
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