Tutors Answer Your Questions about Exponential-and-logarithmic-functions (FREE)
Question 202432: Can ANYONE help me with ANY of these?
1) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
3*4^0 = ____
2) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
1 / 4^-2 = ____
3) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
(1/4)^-1/2 = _____
4) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
(bm)^-3 = ____
5) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
y^-5 / y^-2 = ____
6) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
(-243)^3/5 = ____
7) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
36^1/2 = ____
Thank you for your help,
Sarah
Click here to see answer by jim_thompson5910(35256)  |
Question 202433: Can ANYONE help me with ANY of these?
1) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
3*4^0 = ____
2) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
1 / 4^-2 = ____
3) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
(1/4)^-1/2 = _____
4) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
(bm)^-3 = ____
5) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
y^-5 / y^-2 = ____
6) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
(-243)^3/5 = ____
7) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
36^1/2 = ____
Thank you for your help,
Sarah
Click here to see answer by jsmallt9(3758) |
Question 202455: Can anyone help me with these problems???
1) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
y^-5 / y^-2 = ____
2) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
(-243)^3/5 = ____
3) Use the rules of exponents to evaluate or simplify. Write without negative exponents.
36^1/2 = ____
4) Simplify by expressing fractional exponents instead of radicals.
sqrt ab
5) Simplify by expressing fractional exponents instead of radicals.
8th root of x^2y^4
6) Simplify:
8th root of y^2
7) Simplify:
5 / sqrt of 5
8) Simplify:
3rd root of 27^2
Thank You for your help. :)
~Sarah
Click here to see answer by stanbon(75887) |
Question 202463: Can someone help me with these? The directions are as follows:
Use the table of logarithms to calculate the answers:
1) log 7.83 =
2) log .068 =
3) antilog 0.3814 =
4) antilog (8.3174 - 10) =
Thanks! ~Sarah
Click here to see answer by Theo(13342)  |
Question 202797: theater owner charges $3.00 of admission, there is an average attendance of 100 people. for every .10 increase in the admission price , there is a loss of 2 customers from the average number.
Teacher is asking what admission price should be charged in order to maximize revenue?
what is the maximum revenue?
I set it up
R(x)= (3.00-.10x)(100-2x)
am I on the right track
not sure what to due next
thanks
Click here to see answer by stanbon(75887) |
Question 202866: I need sooo much help... and i gladly appreciate your efforts in trying to teach me logarithms....
the directions are: change each logarithmic expression to an equivalent expression involving an exponent.
some of the questions are:
1) log3^2=x
2) log 2 m=1.3
please if you can explain this in detail i would greatly appreciate it...
Click here to see answer by stanbon(75887) |
Question 203001: Kaleah1 needs help in solving word problem below:
Upstream, downstream. Junior's boat will go 15 miles per hour in still water. If he can go 12 miles downstream in the same amount of time as it takes to go 9 miles upstream, then what is the speed of the current?
Click here to see answer by stanbon(75887) |
Question 203088: can someone help me with this please thanks
U.S. Population
YEAR POPULATION
1930 122,800,000
1940 131,700,000
1950 150,700,000
1960 179,300,000
It is estimated that the limiting population that the United States can support is 500,000,000 people. Predict the population for the year 2000 using the logistic growth model on the basis of the data in the years 1950 and 1960. In other words:
* Let P = P (t) be the population, where t is the number of years after 1950.
* Assume P (t) is of the form given by the logistic equation. Determine what the value of L must be in this case.
* Find the exact values of P (0) and P (10) from the U.S. Population table given above. Use these two data points to find the values of b and k in the formula for P (t).
Note: Answer to the nearest 1 million people, and do not use commas in your answer.
Click here to see answer by stanbon(75887) |
Question 203087: Find the absolute maximum and absolute minimum values of the function below. If an absolute maximum or minimum does not exist, enter NONE.
f(x) = x^2 + 250/x on the open interval (0,infinity )
I know that the absolute max is the answer NONE
but I can not figure out the absolute min
can someone help please
thanks
Click here to see answer by jim_thompson5910(35256) |
Question 203500: can someone help me with this question
thanx.
solve the following equation for x, giving the answer correct to two decimal places
this question is from the book Longman Pre-U Text STPM Mathematics S & T Paper 1
Click here to see answer by jsmallt9(3758) |
Question 203504: The consumer price index compares the cost of goods and services over various years. The same goods and services that cost $100 in 1967 cost $148.50 in 1977. Assuming exponential growth, find the value of these same goods and services in 1999.
After what period of time did the same goods and services cost double that of 1967?
Hint: x.xx years
can someone help please
Click here to see answer by stanbon(75887) |
Question 203505: A rectangular box with not top is to contain 2250 cubic inches of volume. Find the dimensions of the box that will minimize the surface area. The length (l) of the base is three times the width (w)
w= inches
h= inches
l= inches
not sure what I am doing wrong but I am having any luck can someone please thanks
Click here to see answer by scott8148(6628)  |
Question 203881: Hello,
Here is the question that I have to answer. I am totally lost!! I have read the book over and over again and cannot figure this out.
1. Give an example of an exponential function. Convert this exponential function to a logarithmic function. Plot the graph of both the functions.
I am guessing but I think that an example of an exponential function would be e^2-13=x. I have no idea how to then convert this to a logarithmic function and to plot a graph. Please someone help break this down for me to understand. I want to learn it!! Thank you in advance for your time.
Colleen
Click here to see answer by Alan3354(69443)  |
Question 203895: Having trouble figuring this out- I know what to do but not sure how to format with the sqrt 1+x.
Here is the question
Find the volume generated by revolving about the x-axis the regions bounded by the following graphs:
y= sqrt 1+x
x= 2
x= 9
thanks
Click here to see answer by jsmallt9(3758) |
Question 204144: Please help with this one. I need assistance with word problems. I need to pass this class. Thanks in advance.
A cell divides into two identical copies every 4 minutes. How many cells will exist after 5 hours?
Click here to see answer by scott8148(6628) |
Question 204146: Please help me with this one. I had a difficult time trying to do this one. I don't think that I have the right set up. Thanks in advance.
The level of thorium in a sample decreases by a factor of one-half every 2 million years. A meteorite is discovered to have only 8.6% of its original thorium remaining. How old is the meteorite?
Click here to see answer by scott8148(6628) |
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