Tutors Answer Your Questions about Exponential-and-logarithmic-functions (FREE)
Question 129740: WRITE THE EQUATION IS SIMPLEST FORM
2/ 6 RADICAL 81
i DON'T UNDERSTAND HOW TO FACTOR THE ON BOTTOM AT ALL
i REALLY CONFUSED A DESPARTLY NEED A FULL EXPLANTION
i HAVE TRY FACTOR 3 RADICAL BUT I DIDN'T REALLY GET WERE GOING
i WOULD LOVE HELP BECAUSE DUE TOMMOROW
PLEASE HELP ME AND THANK FOR HELP
Click here to see answer by edjones(8007)   |
Question 129925: I need help with this question
If 500 is deposited in an account paying 8.5% annual interest, compounded continuously, how long will it take for the account to increase to $800? calculate your answere to three decimal places before rounding to two.
Click here to see answer by stanbon(75887) |
Question 129915: I need help with this question
A pop growing at an annual rate "r" will triple in a time "t", and is given by the following formula. If the growth rate remains constant and equals 14% per year, how long will it take the population of the time to triple?
Click here to see answer by scott8148(6628)  |
Question 129959: Tutor:
Could you PLEASE help me understand the following problem? My algebra 2 teacher wrote the answer on the board and I copied it down in hopes that I could figure it out later, but apparently I can't.
Icann Flie loves to hanglide at a nearby beach. When he jumps off the escarpment he dives downward toward the water until the wind catches his hanglider, then he flies upward. Assume that his distance in feet from the water varies quadratically with the time since he started his flight. The escarpment is 105 feet above the water. Five seconds after he jumps he is 30 feet above the water. Five seconds later he is 21 feet above the water.
a. Define the variables, write the ordered pairs, and find the particular equation of this function expressing distance above the water in terms of seconds in flight.
The teacher put this on the board (sorry if it is out of order...I don't particularly know where everything goes):
x=time y=distance above water y=ab^x
(0,105) (5,30) (10,21)
y=xt^2+xt+105
answer: y=1.32t^2-21.6t+105
I understand where the teacher got the plots, but after that, I don't know what I'm doing. Log doesn't work the way I'm doing it, and I have no clue what to do with it.
Click here to see answer by scott8148(6628) |
Question 130670: One motorcycle costs $8000 and depreciates in value at 6% per year, while another motorcycle costs $7000 and depreciates in value at a rate of 4% per year. If both motorcycles are bought at the same time , when (correct to one decimal place)will the value of both be the same??????????
Click here to see answer by mandymae(2) |
Question 131041: I missed lecture on Chapter 13.2 and 13.3 because I had to work and I am struggling trying to understand what it is they want me to do and how to work it.
Problem is # 8 in section 13.2 Graph y=3^ ^ is x other problems listed are y= (1/3) ^ with ^ being x.
I m not understanding how or what format is used in drawing out the box and where the numbers come from.
Please help.
Click here to see answer by stanbon(75887) |
Question 131694: Hi I dont understand how to do this problem. The chapter is on exponential and logarithmic functions. the problem on writing an exponential function from two points on the functions graph.
Heres the question
Write an exponential function of the form y=ab^x that includes the given points. (1,2) (2,8)
Thanks alot
Click here to see answer by rapaljer(4671)  |
Question 131700: hey heres another problem i need help on. The chapter im on is called exponential and logarithmic functions. The problem is on writing an exponential function from 2 points on the functions graph.
heres the problem
Write an exponential function of the form y=ab^x that includes the given points: (-1, 2/9) (1,2)
Thanks
Click here to see answer by jim_thompson5910(35256) |
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