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Tutors Answer Your Questions about Exponential-and-logarithmic-functions (FREE)
Question 201601: Determine where the graph of the function is concave up and concave down (if you need to enter use infinity or - infinity)
f(x)=x^3-15x^2+12x+6
concave up
concave down
can someone help please
thanks
Click here to see answer by RAY100(1637)   |
Question 201660This question is from textbook
: log(square root of 1-x) - log(square root of x+2)=logx
First I sqared both sides and got log 1-x -log x+2=log x squared
then i performed the quotient property of logs and got log(1-x/x+2)=log x squared then I got 1-x =x squared (x-2) then I got X cubed - 2x+ x-1=0This question is from textbook
Click here to see answer by RAY100(1637) |
Question 201660This question is from textbook
: log(square root of 1-x) - log(square root of x+2)=logx
First I sqared both sides and got log 1-x -log x+2=log x squared
then i performed the quotient property of logs and got log(1-x/x+2)=log x squared then I got 1-x =x squared (x-2) then I got X cubed - 2x+ x-1=0This question is from textbook
Click here to see answer by stanbon(26259) |
Question 201660This question is from textbook
: log(square root of 1-x) - log(square root of x+2)=logx
First I sqared both sides and got log 1-x -log x+2=log x squared
then i performed the quotient property of logs and got log(1-x/x+2)=log x squared then I got 1-x =x squared (x-2) then I got X cubed - 2x+ x-1=0This question is from textbook
Click here to see answer by solver91311(5072)  |
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(13787) |
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(590) |
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(26259) |
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(667)  |
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(26259) |
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(26259) |
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(26259) |
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(13787) |
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(590) |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340
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