Tutors Answer Your Questions about Exponential-and-logarithmic-functions (FREE)
Question 246607: Hello,
Help!! Help!! Help!!
I have submitted these two problems three time can someone please help me, I really would appreciate your assistance, I need to get these answer in today or I fail the assignment.
a. Find the vertex, the axis of symmetry, and the maximum or minimum function
value and,
b.graph the function
1. Complete the square to find the x-intercepts of each function given by the equation listed; 
2. 
Please help me, I am desperate. Thank you
Tammy
Click here to see answer by dabanfield(803)  |
Question 246811: I am looking for help with the following problem:
"Cathy hit a golf ball 140 yards down the fairway. If the ball reaches a maximum height of 20 yards, find the equation for the height of the golf ball verses the distance it has traveled. Assume a parabolic path."
Thank you for your help.
Click here to see answer by stanbon(75887) |
Question 247880: when i type in a negative number and square it i get a negative result even thought the answer should be positive. for example if i type in -6^2 i'll get -36 instead of 36. I have a Ti-84 but i also have the same problem on an 83 and an 89 titanium. how do i fix it?
Click here to see answer by scott8148(6628)  |
Question 251359: Evaluate the logarithmic equation for three values of x that are greater than -1, three values of x that are between -2 and -1, and at x = -1. Show your work. Use the resulting ordered pairs to plot the graph; submit the graph via the Dropbox. State the equation of the line asymptotic to the graph (if any).
y = log4 (x + 2)
Click here to see answer by solver91311(24713)  |
Question 251449: P₀ is invested in a savings account where interest is compounded continuously at 3.1% per year.
a) Express P(t) in terms of P₀ and 0.031
b) Suppose that 1000$ is invested, what is the balance after 1 yr? 2 yrs?
c) When will an investment of 1000$ double itself?
Helpful formula:
When an amount of money P₀ is invested at interest rate k, compounded continuously, interest is computed every instant and added to the original amount. The balance P(t), after t years, is given by the exponential growth model
P(t)=P₀e^kt
Click here to see answer by Theo(13342)  |
Question 252075: A bacteria culture grows by the exponential model y = 200ekt. How many bacteria
are there initially? If the number of bacteria triples in 2 hours, find the number of
bacteria after 5 hours.
Click here to see answer by drk(1908) |
Question 252076: Happyville and Smileytown both have a population of 10,000 people presently. Hap-
pyville is increasing by 1500 people a year and Smileytown is increasing by 15% a
year.
a) Which town is growing faster?
b) Find formulas for the populations of these towns as function of time t in years.
c) Use part b) to predict the size of both towns 5 years from now.
d) Find a year in which population of Happyville will be over 25000. Do the same
for Smileytown.
Click here to see answer by stanbon(75887) |
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