1,647 Answered Questions for the topic Math Help For College
05/07/14
functions question
Let f(x)=3x-1 and g(x)=x^2+4
find (f g)(-2)
Follows
•
2
Expert Answers
•2
![]()
![]()
05/07/14
two word problems
1)A car company charges $31 per day to rent a particular type of car and $0.16 per mile. Juan is charged $47.96 for a one day rental. How many mile did he...
more
Follows
•
5
Expert Answers
•4
![]()
![]()
![]()
05/07/14
word problem library
The number o books in a small library increase according to the function B=6,700e0.03t, where t is the measure of years. How many books will the library have after 2 year(s)?
a) 7,693
b)...
more
Follows
•
2
Expert Answers
•1
![]()
05/07/14
domain and range
What is the domain and the range of f(x)=3x+4
Follows
•
2
Expert Answers
•1
![]()
solution of the equation
Determine the nature of the solutions of the equation:
5x^2-6x=-9
a)Two real solutions
b) No solutions
c)One real solution
d)two solutions with imaginary parts
Follows
•
3
Expert Answers
•3
![]()
![]()
![]()
Math Help For College
05/06/14
math Help???????
SOLVE THE NONLINEAR SYSTEM OF EQUATIONS FOR REAL SOLUTIONS
x2 + 3y2 = 6
x2 - 3Y2 = 10
Follows
•
3
Expert Answers
•2
![]()
![]()
Math Help For College
05/06/14
Math Help???????
SOLVE THE NONLINEAR SYSTEM OF EQUATIONS FOR REAL SOLUTIONS
3x2 + 4y2 = 9
3x2 - 4y2 = 9
Follows
•
2
Expert Answers
•1
![]()
Math Help For College
05/06/14
math help???????
SOLVE THE NONLINEAR SYSTEM OF EQUATIONS FOR REAL SOLUTIONS
y = x2 + 3
y = -x2 + 5
Follows
•
3
Expert Answers
•2
![]()
![]()
Math Help For College
05/06/14
Solve equation????
Solve the nonlinear system of equation for real solution
5 x2 + 3 y2 = 120
-x2 + y2 = 16
a) The solution is ???????
b)the is no solution
Follows
•
2
Expert Answers
•1
![]()
Math Help For College
05/06/14
Help with math
SOLVE THE NONLINEAR SYSTEM OF EQUATIONS FOR REAL SOLUTION
{ x2 + 2 y2 = 2
x - y = 2
a) The solution is ??????
b) there is no solution
Follows
•
3
Expert Answers
•2
![]()
![]()
05/05/14
critical values
List the critical values of the related function. Then solve the inequality and show work.
5x <0
x + 1
Follows
•
1
Expert Answers
•1
![]()
Math Help For College
05/05/14
Please helppp =(
Find how long it takes $1500 to double if it is invested at 6% interest compounded semiannually. Use the formula
A=P ( 1 + R/N)nt to solve the compound interest problem
it will take...
more
Follows
•
1
Expert Answers
•1
![]()
05/05/14
A metallurgist has one alloy containing 36% aluminum and another containing 68% aluminum. How many pounds of each alloy must he use to make 47 pounds of a third
A metallurgist has one alloy containing 36% aluminum and another containing 68% aluminum. How many pounds of each alloy must he use to make 47 pounds of a third alloy containing 46% aluminum?
Follows
•
2
Expert Answers
•1
![]()
05/04/14
LOG AND EXPONENTIAL
Log41=______ (fill in the blank)
For parts a and b
let x=Log4 1/16
a) Write the exponential form of the equation.
b)Determine the numerical value of x, in simplest form. Show work.
Follows
•
2
Expert Answers
•1
![]()
05/04/14
Logarithmic equation
Convert a logarithmic equation: 8x =2401
Follows
•
1
Expert Answers
•1
![]()
05/04/14
F(x) help show work
Let f(x)=e3x
(a.) Find the inverse function of f. Show work.
(b.) What is the domain of f ? What is the domain of the inverse function?
04/29/14
compositions of functions
Use composition of functions to show that the functions f(x)=8-3x and g(x)=-1/3 x+8/3 are inverse functions. That is, carefully show that (fog)(x)=x and show that (gof)(x)=x. Show work.
Follows
•
2
Expert Answers
•1
![]()
04/29/14
logarithms help please
Express in terms of sums and differences of logarithms: log?((10 x^2 y^5)/√z ) Show work.
Follows
•
3
Expert Answers
•2
![]()
![]()
04/29/14
compound intrest
$15,000 is invested in an account paying 2.5% annual interest compounded quarterly. Find the amount of money in the account at the end of 10 years. Show work, round your final answer to the nearest...
more
Follows
•
2
Expert Answers
•1
![]()
04/29/14
word problem help please
Psychologist use and exponential model of the learning process, f(t)=c(1-e-kt) where c is the total number of tasks to be learned, k is the rate of learning expressed as a decinal, t is time in...
more
Follows
•
2
Expert Answers
•1
![]()
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
