495 Answered Questions for the topic Precalculus Homework
Precalculus Homework
11/15/14
Nancy wants to invest $3000 in saving certificates that bear an interest rate of 9.75% per year
Nancy wants to invest $3000 in saving certificates that bear an interest rate of 9.75% per year, compounded semiannually. How long a time period should she choose to save an amount of $4000?
Follows
•
1
Expert Answers
•1
![]()
Precalculus Homework
11/12/14
Solve for the height
A flag pole is situated on top of a building. The angle of elevation from a point on level ground 330 feet from the building to the top of the flag pole is 63". The angle of elevation from the same...
more
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
10/29/14
8) for the function: f(x) = (x-1)^2 (x-3) (x+1)
Expended version: x^4 - 4x^3 + 2x^2 + 4x - 3
A) use the leading coefficient test to determine the end behaviors.
Degree:
Leading Coefficient:
...
more
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
10/29/14
7) what is the equation of the function whose vertex is (1,1) and goes through the point (0,3)
(hint: plug constants into vertex form: f(x) =a(x-h)^2 + k)
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
10/29/14
for the function in standard form: f(x)= x^2-2x+1
a) what are the coordinates of the vertex of the parabola? (hint: x= -b / 2a)
B) is the vertex a minimum of a maximun? explain
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
10/29/14
Solve each equation by using the quadratic formula
2x^2+11x-51=0
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
10/29/14
Solve each equation by factoring
1) (2b-3) (b+2)=0
2) r^2+2r-48=0
3) x^2+7x=8
4) 8a^2 - 24a=0
Follows
•
1
Expert Answers
•1
![]()
Precalculus Homework Continuous Compounding
10/28/14
A repitred couple has $500,000 in an account that earns 6.8% interest compounded continually.
They withdraw 5% of the amount in the account each year starting next year.
a) Write a formula for the amount of money in the account for t years from now
b) Write a formula for the amount of...
more
Follows
•
3
Expert Answers
•1
![]()
Precalculus Homework
10/28/14
Suppose $3000 is invested at a rate of 7% per year compounded monthly. (Round your answers to the nearest cent.)
Suppose $3000 is invested at a rate of 7% per year compounded monthly. (Round your answers to the nearest cent.)
a.) Find the principal after 6 months.
b.) Find the principal after 1...
more
Follows
•
2
Expert Answers
•1
![]()
For the function, find the intervals where the function is increasing, decreasing, or constant.
The function is: R(x)= (x+2)2 if x<-1
-x if x≥-1
Thanks in advanced.
10/18/14
Determine the approximate distance...
Determine the approximate distance between the Earth, with a mass of approximately 6.0x10^24 kg, and an object which has a mass of 6.42x10^22 kg if the gravitational force equals approximately...
more
Follows
•
1
Expert Answers
•1
![]()
10/18/14
How far did it travel in the first 2 seconds?
The distance that an object falls from rest, when air is negligible, varies directly as the square of the time. A stone dropped from rest travels 400 feet in the first 5 seconds.
Thanks in advanced.
Follows
•
1
Expert Answers
•1
![]()
Precalculus Homework Functions
10/18/14
For the function below, determine a. f(x-1) b. f(x+a)-f(x) and c. f(x^2)
The function is 3√x +6(x=4)
Thanks in advanced.
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework Domain And Range
10/18/14
For each relation below, describe the domain and range and determine whether or not the relation is a function.3x-4y=17and x=vy-4
Thanks in advanved :)
The second equation is x=√y-4
Precalculus Homework
09/27/14
Evaluate the radical expression and express the result in the form a + bi.
√-5√-45
Follows
•
1
Expert Answers
•1
![]()
Precalculus Homework Precalculus
09/24/14
Help with solving this equation. Please help!
f(x) = 8^(x+1) Find f(1/3)
Thank you in advance
Follows
•
3
Expert Answers
•2
![]()
![]()
Precalculus Homework
09/23/14
if f(x) = 3x^3 + x-3 and g(x)= -3+4x+5x^2. Find a and b
a) (f+g)(x)
b) (f-g)(x)
Follows
•
1
Expert Answers
•1
![]()
Precalculus Homework
09/23/14
Evaluate the piece wise function for the given values .
f(x)={¦(4x=1 if x>1@|x| if x≤1)¦
a) f(2)
b) f(-3)
Precalculus Homework Precalculus
09/23/14
Graph the piece wise function below
f(x)={¦(|x| if x ≤1@4x-1 if x>1)¦
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
09/23/14
F(x)= x^3-x
For each of the following functions, state the DOMAIN
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
09/18/14
what is the value of 4x-3y?
if (4x+3y)/(16x^2-9y^2)=10
Follows
•
2
Expert Answers
•1
![]()
09/09/14
I don't understand how to set up this problem in order to solve it. I need step by step solutions. Problem in details below:
Here is more details about the question since I ran out of room in the provided space:
A chain is draped over a fence with one end attached to a steel ball. A monkey is holding onto the other...
more
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
09/09/14
Find the range of the function. f(x) = x2 + 3
Find the range of the function.f(x) = x2 + 3
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
09/09/14
Describe how to transform the graph of f into the graph of g. f(x) = x4 and g(x) = -(-x)4
Describe how to transform the graph of f into the graph of g.f(x) = x4 and g(x) = -(-x)4
Follows
•
2
Expert Answers
•1
![]()
08/28/14
Let g(x)=x^2+x. Find formulas for the following functions. g(squareroot x)
g(x)=x2+x.
g(√x)
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.