2,195 Answered Questions for the topic Pre Calculus

Pre Calculus College Algebra

09/14/18

Graph the polynomial function
Graph the polynomial function. Label all key points. 1. p(x)=x^2(2x+7)(x-8)^3 a.) from the leading coefficient test, describe the end behavio. b.) find the zeros and list the multiplicity of... more
Follows • 1
Expert Answers •1
Pre Calculus Calculus 1

09/13/18

Find if the following graphs are symmetric with respect to the axes or the origin
A. y=2x B. y=3x C. y=x^4-x^2 D. y=x^4-x
Follows • 1
Expert Answers •1
Pre Calculus

09/10/18

Determine ƒ(a + h) for ƒ(x) = 2x^3
ƒ(a + h) = 2(a3 + 3a2h + 3ah2 + h3) ƒ(a + h) = 2(a3 + a2h + ah2 + h3) ƒ(a + h) = 8(a3 + 3a2h + 3ah2 + h3) ƒ(a + h) = 8(a3 + h3)
Follows • 2
Expert Answers •1
Pre Calculus

09/10/18

Determine f(2) where f(X)= x+1/4x-2
F(2)= 3/8 F(2)= -3/8 F(2)= 2 F(2)= 1/2
Follows • 2
Expert Answers •1

09/09/18

Mathematical models: constructing an open box
An open box with a square base to be made of a square piece of cardboard 24 inches on 24 inches on a side by cutting out a square from each corner an turning up the sides. Express the volume v of... more
Follows • 1
Expert Answers •1

09/09/18

Mathematical Models
Volume of a cylinder: The volume of a right circular cylinder of height h and radius r is V=(Pi)r^2h. If the height is twice the radius, express the volume V as a function of r 
Follows • 2
Expert Answers •1
Pre Calculus

09/05/18

Determine if the equation x2 – y = 1 defines y as a function of x.
A   Yes. One output results in one input. B   No. At least one output results in two inputs. C   Yes. One input results in one output. D   No. At least one input results in two outputs.
Follows • 3
Expert Answers •1
Pre Calculus

09/05/18

Determine ƒ(–a) where ƒ(x) = x2– 6x and simplify.
 A  ƒ(–a) = –a2 + 6a  B  ƒ(–a) = a2 – 6a  C  ƒ(–a) = a2 + 6a  D   ƒ(–a) = –a2 – 6a
Follows • 2
Expert Answers •1
Pre Calculus

09/03/18

5-12x 10-12x x in standard form
Box measures 5-12x wide by 10-12x long by x in height
Follows • 2
Expert Answers •1
Pre Calculus

08/31/18

find the length of the antenna.
A vertical antenna is mounted atop a 45 foot pole. From a point on level ground 74 feet from the base of the pole, the antenna subtends an angle of 10.6. Find the length of the antenna.  
Follows • 2
Expert Answers •1
Pre Calculus Algebra

08/31/18

investment (pre-cal)
Kate invested a total of 8000$ part at 5% and part at 6% simple interest. at the end of year 1, she made 454$ interest. how much was invested into each rate?
Follows • 2
Expert Answers •1
Pre Calculus

08/30/18

6(x+h)^3 how to factor this
Question is actually algebra 2, but Ive forgotten how to factor this. The context is finding the difference quotient. F(X) = 6x^3, after plugging in (x+h) in the x spot we have 6(x+h)^3, this then... more
Follows • 3
Expert Answers •2
Pre Calculus

08/28/18

Assume (-2,3) is a point on the graph of f. What are the coordinates if y=-f(x/2)
Assume (-2,3) is a point on the graph of f. What are the coordinates if y=-f(x/2)
Follows • 2
Expert Answers •2
Pre Calculus

08/28/18

Find the domain of the function: f (x) = 1+4x / 2x − 1
Find the domain of the function
Follows • 3
Expert Answers •2
Pre Calculus Calculus 1

08/27/18

How do I solve this problem on absolute values?
A. Find a value of a for which |-a| does not equal a   B. For what values of a does |-a|=a hold true?
Follows • 1
Expert Answers •1
Pre Calculus

08/26/18

see description
If g is a decreasing function on an interval including -and 3, then which is a larger number f(-1) and f(3)? Explain your answer 
Follows • 2
Expert Answers •1
Pre Calculus

08/26/18

look at description for math related question
Hi I'm looking at a graph and trying to find the interval on which f is increasing/decreasing/constant. There are open and closed circles for certain points on the graph. When listing the... more
Follows • 2
Expert Answers •1
Pre Calculus

08/24/18

How do you simplify sinxcosx using Trigonometric Identities?
I'm doing a problem where I have to prove the Trigonometric equation, (sinx)(tanx cosx-cotx cosx)=1-2cos²x and I'm distributing the sinx and here's how it looks so far: sinx tanx sinx cosx - sinx... more
Follows • 2
Expert Answers •1
Pre Calculus

08/22/18

Find all real values of x for which f(x) = 0. f(x) = x3 − x2 − 3x + 3
 can you help me please i really need it?
Follows • 2
Expert Answers •2
Pre Calculus

08/21/18

Evaluate and simplify f(x)= -4x+5
I need help. I don’t know how to do this. Please respond. I just don’t know how I can simplify it. 
Follows • 2
Expert Answers •1
Pre Calculus Math Precalculus College

08/08/18

please help me with math. i cant figure it out
A trucks wheel has a dimater of 36 iches and travels at 50 miles per hour. what is the angular speed in radians per minute
Follows • 2
Expert Answers •1
Pre Calculus

08/08/18

Determine dimensions of rectangle that will make area maximum
a rectan pen is to be made with 120 m fencing pen is divided into 4 parts and and exist propert fence will be used for one lomg side if x represents width of fence express area A(x) in terms of x... more
Follows • 2
Expert Answers •1
Pre Calculus

07/29/18

Create a rational function with the following properties: has a hole when x=5, has its only vertical asymptote when x=-6, has a horizontal asymptote of y=7
After you have found what what the function is, list it's zeros.
Follows • 1
Expert Answers •2
Pre Calculus

07/26/18

Rewrite with only sin x and cos x. sin 3x I don't know how to do this. Can you help me?
2 sin x cos^2 x + cos x 2 sin x cos^2 x + sin^3 x sin x cos^2 x - sin^3 x + cos^3 x 2 cos^2 x sin x + sin x - 2 sin^3 x   these are the options so the answer has to be one of these
Follows • 2
Expert Answers •2
Pre Calculus

07/24/18

How do I find the rate "R" variable in this exponential growth model?
The area covered by a certain population of bacteria increases according to a continuous exponential growth model . Suppose that a sample culture has an initial area 54.6mm^2 of and an observed... more
Follows • 1
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.