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Tutors Answer Your Questions about Functions (FREE)
Question 123784: Can you tell me if I am working this problem correctly. I am simplifing the expression, using only positive exponents in my answer.
I make the exponent positive by doing this 
Next I find that my LCD =
By multiplying all numerators by and canceling out where possible, I come up with a final answer of 
Am I correct with my steps and final answer? Thanks for your help in advance!
Lee
Click here to see answer by MathLover1(1183)   |
Question 123823This question is from textbook Precalculus Graphical, Numerical, Algebraic
: Can you please help me answer this question?
Find f(g(x)) and state its domain. f(x)=x^3,g(x)=3sqrt(1-x^3)
My answer options:
A.f(g(x))=sqrtx^3, domain:(neg. infinity, pos. infinity)
B.f(g(x))=1-x^3, domain:(neg. infinity, pos. infinity)
c.f(f(x))=0, domain:(-1,1)
D.f(g(x))=x^3, domain: [-1,1]
This is written exact.
Hope you can help me, thank you?This question is from textbook Precalculus Graphical, Numerical, Algebraic
Click here to see answer by stanbon(26275)  |
Question 124237This question is from textbook Precalculus
: Can you plese help me answer this question?
Given that the volume V of a circular cylinder of fixed height is profortional to the square of its radius r, we may write this formula as a power function as follows.
My answer options are:
A. V=ksqrt(r)
B. V=kr^2
C. V=kr
d. V=k^2r
Please help, I highly appreciate it. Thanks
This question is from textbook Precalculus
Click here to see answer by Earlsdon(4900) |
Question 124270: If y varies inversely as  , and  , what is the constant of variation? I have sought help from others and they went through a lot of work to unfortunately not find an answer, unfortunately I don't have the paper she worked on but the formulas left me with a migraine. Any help would be appreciated. with this problem done I can finally graduate.
Click here to see answer by scott8148(3382)  |
Question 124378: Can someone please help me with this problem?
The last line of synthetic division for (2x^4-5x^3+7x^2-3x+1)/(x-3) gives coefficients for the quotient of 2,1,8,21.
Is this true or false?
I thought the answer was false. Am I right please help!!!
Click here to see answer by jim_thompson5910(13794) |
Question 124378: Can someone please help me with this problem?
The last line of synthetic division for (2x^4-5x^3+7x^2-3x+1)/(x-3) gives coefficients for the quotient of 2,1,8,21.
Is this true or false?
I thought the answer was false. Am I right please help!!!
Click here to see answer by Edwin McCravy(2922) |
Question 124580: Find the value for the function NEED TO FIND F(2X) WHEN F(X)
(I am not able to type the math symbols for sq rt)PROBLEM READS SEVEN X SQ PLUS 4 X UNDER THE SQ RT SYMBOL,
This is a take home quiz
I think you substitute x w/ (2x)....ex 7(2x)2 + 4(2x)= 28x2=12x
SORRY IF THIS IS TOO CONFUSING....THANKS FOR YOUR HELP
lIVEY
Click here to see answer by stanbon(26275) |
Question 124608This question is from textbook
: Can someone please help me with this problem?
A sign pattern chart may be used to solve (x^2+3x-10)/(x^2-6x+9)>0. This sign patterns chart partitions the domain based on the factors
My answer options are:
a.(x+5)and(x-3)
b.(x+5)and(x-3)^2
c.(x+5),(x-2),and(x-3)
d.(x-5),(x+2),and(x+3)
Please help me answer this question as soon as possible. Thank you.This question is from textbook
Click here to see answer by stanbon(26275) |
Question 124608This question is from textbook
: Can someone please help me with this problem?
A sign pattern chart may be used to solve (x^2+3x-10)/(x^2-6x+9)>0. This sign patterns chart partitions the domain based on the factors
My answer options are:
a.(x+5)and(x-3)
b.(x+5)and(x-3)^2
c.(x+5),(x-2),and(x-3)
d.(x-5),(x+2),and(x+3)
Please help me answer this question as soon as possible. Thank you.This question is from textbook
Click here to see answer by Edwin McCravy(2922) |
Question 124614This question is from textbook
: Would someone be able to help me with this problem?
The solution to the inequality x^3-4x^2-x+4(
My answer options are:
a.[1,4]
b.(-infinity,-1]U[1,4]
c.[4,infinity)
d.[-1,1]U[4,infinity)
I thought the answer was a.,is this correct? Please help as soon as possible!!!This question is from textbook
Click here to see answer by stanbon(26275) |
Question 124610This question is from textbook
: Can you please help me with this problem a.s.a.p?
The function f(x)=((x-1)/(x-4)sqrt(x+2)) is negative for x in
a.(1,4)
b.(-infinity,4)
c.(-infinity,1)
d.(4,infinity)
I think the answer is b.,am I right? Please help as soon as possible.This question is from textbook
Click here to see answer by bucky(1732) |
Question 124870: Find f of each given value of x.
f(x)=3x-2
f(x)=3x2+4x-2 (the 2 after the first x is suppose to mean squared)
Could you please show me the process of completing this?
Here is what I have tried;
f(x)=3x-2
f(8)=3-8-2
f(8)=22
Click here to see answer by solver91311(5072)  |
Question 125407This question is from textbook college algebra third edition
: I have tried and tried to solve this and another problem. I am in college and on the Dean's list but for some reason I cannot solve this problem, PLEASE HELP!!!!
Page 129
#32
Corral Design. A rancher has 360 yd of fencing with which to enclose two adjacent rectangular corrals. A river forms one side of the corrals (lengthwise). Suppose the width of each corral is x yards.
A. Express the total area of the two corrals as a function of x.
B. Find the domain of the function.
Please help ASAP. thank you so much.This question is from textbook college algebra third edition
Click here to see answer by josmiceli(3009) |
Question 125461: Can someone please help me with this problem?
Without using your graphing calculator, determine the zeros of the funtion y=(1/2)sinx
Answer options:
a.k(pi), where k is any integer
b.((k(pi))/2, where k is any odd interger
c.2k(pi), where k is any integer
d.((k(pi))/4, where k is any odd integer
I don't understand, at all, how to do this. Please get back to me as soon as you can, thank you!!!!!
Click here to see answer by uma(370) |
Question 125688: Hi I am working on this problem I don't understand. Hopefully you can help me. The chapter is function operations, dividing functions. Here's the question..
Let f(x)=3x^2-2x and g(x)=x-6. Find each value.
(f/g)(-1)
Thanks
Click here to see answer by stanbon(26275) |
Question 125868: The formula for calculating the amount of money returned for an initial deposit into a bank account or CD (certificate of deposit) is given by
A is the amount of the return.
P is the principal amount initially deposited.
r is the annual interest rate (expressed as a decimal).
n is the number of compound periods in one year.
t is the number of years.
If a bank compounds continuously, then the formula used is
where e is a constant and equals approximately 2.7183.
Calculate A with continuous compounding. Round your answer to the hundredth's place.
Answer:
Show work in this space:
e) A commonly asked question is, “How long will it take to double my money?” At 8% interest rate and continuous compounding, what is the answer? Round your answer to the hundredth's place.
Answer:
Show work in this space:
Click here to see answer by stanbon(26275) |
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