Number of results: 36,014
real-life step function
So if I wanted to do a step-function graph for gas prices, how would that work? I'm a little confused. Could someone give me examples please? That would be so helpful (: Thanks!
Tuesday, October 16, 2012 at 10:16pm by Claire
algebra
Depends what your "real life" is like How does reading a good book help you in real life? How does playing a game of golf help you in real life? How does listening to Mozart help you in real life ? How does doing a cross-word puzzle help you in real life ? How does ...
Monday, January 30, 2012 at 3:27pm by Reiny
college algebra
find a real-life application of a quadratic function. State the application, give the equation of the quadratic function, and state what the x and y in the application represent. Choose at least two values of x to input into your function and find the corresponding y for each...
Sunday, October 19, 2008 at 2:49pm by Renee
MAth
What is the difference between domain and range? Describe a real life situation that could be modeled by a function. i can not think of a real life situation either
Monday, September 1, 2008 at 4:39pm by dawn
Math
What is the differnce between a range and domain how can I tell if it is a function or non function. I need a real life example Please help!
Wednesday, January 18, 2012 at 10:30am by Brian
college math
According to my table of integrals, this one is a real mess. I had to use a recursion relation. This is equivalent to using integration by parts several times. The first step yields INT of 1/(x^2 +1)^5 = x/[8(x^2+1)^4] + (1/4) INT of 1/(x^2 +1)^4 In the next step you reduce ...
Sunday, February 15, 2009 at 6:17pm by drwls
College Algebra
Find a record breaking temp. for a city. Include name of city, temp., and record broke. Give the formula for converting degrees F. to degrees C. Using the formula show how to convert to degrees C. Part 2) Find real life application of a linear function. State the application, ...
Sunday, June 15, 2008 at 5:10pm by Leigh
Algebra
What is the difference between domain and range? Describe a real life situation that could be modeled by a function? I think I understand domain and range. Domain is the x axis and range is the y axis correct? I need help with applying it to real life. Thank you.
Wednesday, April 2, 2008 at 2:22pm by Tara
math
I am supposed to come up with a real life problem and then write a function to represent that real life scenario, but I am not confident in my answer. Could you look it over and tell me if I did it correctly? The basic cell phone plan costs 19.99 a month plus an additional fee...
Thursday, November 26, 2009 at 9:32pm by Lisa...please help
Math
I need help with scales and converting them to real-life measurements. So, there's this line on the page that measures 1 metre in real life. I measured it with my ruler and it is 9.3 cm. So the scale is 9.3 cm = 1 m. But how would I convert measurements with my ruler into ...
Thursday, March 27, 2008 at 4:25pm by Lucy
algebra
Actually, it doesn't necessarily depend what your so-called real life is like. Real life is real life, believe it or not. Oh my god. So confusing. Not. Sorry to be so blunt. So back to the question. It could help you solve problems that could actually occur to you, like ...
Monday, January 30, 2012 at 3:27pm by LogicManiacGuy
Calculus
The first step in any single function limit question such as this is to substitute the "approach value" into the function. If you get a real number answer, that is it, you are done. so here limit (x-5)/(4x^2 - 6x + 3) as x ---> -1 = -6/(4+6+3) = -6/13 the ...
Tuesday, April 15, 2008 at 2:45pm by Reiny
computer science
Can you find the reason that the following pseudocode function does not return the value indicated in the comments? // The calcDiscountPrice function accepts an item’s price and // the discount percentage as arguments. It use those // values to calculate and return the ...
Wednesday, November 21, 2012 at 9:55pm by Terry
algebra
What is an example of a real life situation that could be modeled by a function.
Monday, February 28, 2011 at 3:09pm by bianca
college algebra
find a real-life quadratic function
Friday, November 20, 2009 at 12:52am by Lisa
maths
f: R->R defined by f(x)=|x| is a function but it is neither surjective nor injective because in order to be injective, each real number y that is an element of the function's Y mapping, which in this case is all reals, can only be gotten to by at MOST one possible ...
Sunday, November 15, 2009 at 2:04pm by Bryan
College Algebra
Using the 7 steps outlined in section 4.3 of your book, analyze the graph of the following function: R(x) = x^2 - 49/x^4 - 16 Step 1: Factor the numerator and denominator of R and find its domain. If 0 is in the domain, find y-intercept, R(0), and plot it. Step 2: Write R in ...
Tuesday, August 7, 2012 at 8:46pm by Kameesha
algebra
This is not a question. It is a two-part assignment. We will be glad to critique your work. For a real-life application of a quadratic function, you might consider the stopping distance of a car as a function of its speed. Assume a maximum possible deceleration rate without ...
Thursday, November 22, 2007 at 10:19pm by drwls
pre-calculus honors
It is indeed a step function, with each step lasting one pound. Note that the beginning of the step is included in the interval, for example, 2 pounds to 2.9999999 pounds will cost 7$. The end of the step must be excluded to avoid two costs for the same weight. This is also ...
Thursday, December 17, 2009 at 5:13pm by MathMate
Algebra
Can you please give me some real life examples of using variables and solving equations. These are 6th grade students and I need to show real-life experiences. Thanks!
Monday, February 18, 2013 at 9:59am by Renee
Math
Explain in 2-3 complete sentences how using function tables can be useful in real life.
Tuesday, March 19, 2013 at 7:41pm by ISABELLA
Algebra
I just need an example of a real-life application of a quadratic function. Thanks so much!
Monday, June 23, 2008 at 3:19pm by Julie
life daeth
the poet is trying to explain (by using a series of metaphors) his/her understanding of life and death - two opposite concepts. Also the poet sees the two - life and death - as interchangeable, or as actually having opposite meanings than those we normally or usually attribute...
Sunday, February 17, 2013 at 3:32am by khan
math
Describe a real life situation that could be modeled by a function. A real life situation is: A family decides that they want to get the carpet done in their house. They already have all the necessary material to do the work but they do not know how. They need to hire someone ...
Sunday, October 10, 2010 at 11:14pm by Anonymous
Algebra
What is the difference between domain and range? Describe a real-life situation that could be modeled by a function
Tuesday, January 12, 2010 at 8:14pm by Michelle
math
What is the difference between domain and range? Describe a real-life situation that could be modeled by a function
Tuesday, January 12, 2010 at 8:08pm by Melissa
Algebra
What is the difference between domain and range? Describe a real-life situation that could be modeled by a function
Tuesday, January 12, 2010 at 7:45pm by Melissa
algebra
What is the difference between domain and range? Describe a real-life situation that could be modeled by a function
Tuesday, January 12, 2010 at 6:56pm by Melissa
math
What is the difference between a domain and a range? Describe a real life situation that could be modeled by a function.
Monday, January 26, 2009 at 1:04pm by tera
math
What is the difference between domain and range? Describe a real life situation that could be modeled by a function.
Thursday, October 23, 2008 at 7:51pm by johnny
math
What is the difference between domain and range? Describe a real-life situation that could be modeled by a function
Thursday, June 5, 2008 at 8:37pm by Anonymous
math
What is the difference between a domain and a range? Describe a real life situation thatcould be modeled by a function.
Sunday, January 25, 2009 at 6:28pm by tera
College Algebra ~ Please Help
Can someone give me some real life applications that I can use for a quadratic function.
Tuesday, November 20, 2007 at 9:27am by Alicia
Calculus
Use the four-step process to find the slope of the tangent line to the graph of the given function at any point. f(x) = 16 - 10 x Step 2: f(x + h) - f(x) = Step 4: f'(x) = lim(h->0)(f(x + h)- f(x))/h =
Friday, June 7, 2013 at 9:19pm by Shan
math
In the function f(x)=(x+5)^4 +k , for which values of k does the function have two real solutions? no real solutions? Explain?
Monday, November 24, 2008 at 1:01am by Kiki
algebra 2
In the function f(x)=(x+5)^4 +k , for which values of k does the function have two real solutions? no real solutions? Explain?
Monday, November 24, 2008 at 12:53am by Kiki
real-life step function
if you knew that gas went up 2 cents every week, you might use something like p = 3.299 + 2⌊x⌋ where x is the number of weeks and p is the price, which started at 3.299 To see some examples, you can go to wolframalpha.com and enter plot 3.299 + 2⌊...
Tuesday, October 16, 2012 at 10:16pm by Steve
algebra
find the real number solutions of the equation. w^4+w^3-w=1 could you please show step by step..thank you
Sunday, February 24, 2008 at 2:58am by jimmy
Math
please go step by step to better understand if 2f(x)+f(1-x)=x^2 for all real numbers, the f(x)=?
Tuesday, October 26, 2010 at 12:27pm by jon
math 116
What is the difference between domain and range? The domain of a function is the set of all values for the independent variable (in the following example, that's the x) for which the function is defined. That is, if you have a function such as f(x) = 1/x Then this function...
Thursday, January 7, 2010 at 7:55pm by sue
math
please go step by step to better understand if x,y,z are three different real numbers with y/x-z=x+y/z=x/y, evaluate x/y
Tuesday, October 26, 2010 at 12:25pm by jon
College Algebra
3x-1/x^2-10x+26 Find all (real) zeros of the function Find all (real) poles of the function The function has... A horizontal asymptote at 0? A non-zero horizontal asymptote? A slant asymptote? None of the above
Monday, November 5, 2012 at 11:52pm by Kenzie
calc
Oh well, we'll make the best out of it. I will assume the function is defined as f(x)=floor(x*10), so this will make a step function, something like: f(x)= 0 0≤x<0.1 1 0.1≤x<0.2 2 0.2≤x<0.3 ... 9 0.9≤x<1 10 x=1.0 Your...
Monday, November 30, 2009 at 11:16pm by MathMate
maths(urgent)thanks.
a parabola with turning point at (1,-2) and passing through the origin.find the equation of this parabola. how do i do this? can someone please show me how to solve it step by step?thanks! You know that at x = 0 the function is zero. Because the turning point is at x = 1 must ...
Wednesday, May 30, 2007 at 9:20am by Emma
Algebra
22. State the domain of the function y=3x+2 a. D: Real numbers b. D: x not equal to 0 c. D: x < 0 A? 23. State the range of the function y=2x^2 a. R: y greater than or equal to 0 b. R: x not equal to 0 c. R: y < 0 I'm not sure? 24. Is y=sqrt2x a function? a. ...
Friday, April 30, 2010 at 7:19pm by y912f
media
Do movie makers, writers, et al, use real-life events as ideas for their stories? Do people see things in movies and on TV that they act out in real life? Keep asking yourself questions like these ... then go looking for the answers. (PS - this is a topic for a book!!)
Tuesday, January 31, 2012 at 12:59am by Writeacher
English
I need a real life example on how growing up or maturing involves seeing and experiencing pain. We used examples from this book we were reading but I also need a real life example and I can't think of one
Monday, June 4, 2012 at 10:38pm by Jacob
Chemistry
Uranium-238 has half life of 4.51 * 10^9 years Uranium-234 has half life of 2.48 * 10^5 years Thorium-230 has half life of 8.0 * 10^4 years Radium-226 has half life of 1.62 * 10^3 years Lead-210 has half life of 20.4 years. The rate constant for the decay of unstable nuclide X...
Tuesday, March 20, 2012 at 2:23pm by Harry
principals of math
a triangle drawn on a map has sides of lenghts 7.0 cm, 11 cm, and 15 cm. the shortest of the corresponding real-life distances is 123km. find the longest of the real-life distatnces. round to the nearest unit.
Sunday, April 14, 2013 at 3:14pm by Christine
Sequence and series
Do you know the difference between a sequence and a series? Graph the terms of an arithmetic series. Remember the domain is the set of natural numbers, not the set of real numbers. What type function do you see? Graph the terms of a geometric series. Remember the domain is the...
Saturday, April 21, 2007 at 4:25am by Tony
algebra
come up with 2 real world examples of situations that use function rules. think about daily life, your home, or the community you live in for ideas.
Tuesday, November 6, 2012 at 9:51pm by mikaela
Alegbra
I've learned that the difference between domain and range is.....domain is the set of possible X values and range is the set of possible Y values. also, a domain is the values that a function maps "from" and the range is the values that a function maps "to&...
Tuesday, March 18, 2008 at 6:10pm by greatdanelola
math
I'm having trouble understanding one step in a proof of the Cauchy-Schwarz inequality: u = a non-zero vector v = another vector a = <u,u> (so a > 0 by positivity axiom) b = 2<u,v> c = <v,v> (so c >= 0 by positivity ...
Thursday, January 4, 2007 at 11:53am by mathstudent
Algebra
Let f be a function that maps A to B. Then A is the domain, and B is the range. For all x in A f(x) is an element of B. As for the real life situation...practically any situation that involves mathematics can involve functions.
Tuesday, January 12, 2010 at 8:14pm by Marth
math
show me step by step how to find the domain of this function then graph it g(x)=2x-4
Monday, July 16, 2012 at 9:49pm by chchch
math
usethe rational zero theorem to find all real zeros of the polynomisl function.Use the zeros to factor f over the real numbers. f(x)=x^4+2x^33-7x^2-8x+12 what are the real zeros?> use the real zeros to factor f f(x)=
Thursday, January 10, 2013 at 12:56am by anonymous
composite functions
Since the the domain of the inner function belongs to real numbers(a polynomial) and the new function is also a polynomial...therefore the domain is all real numbers.
Thursday, July 6, 2006 at 7:43pm by JOe
Family Life
how to create a step-by-step action plan.
Sunday, November 8, 2009 at 3:29pm by TOM
Chemistry
No. That's the third step. (Read my answer again. It isn't that garbled.) Step 1. mol FeCl3 = grams/molar mass Step 2. mols Cl = 3 x step 1 Step 3. Step 2 x 6.02E23.
Monday, March 18, 2013 at 3:20pm by DrBob222
Math
can you show me step by step how tot find the domain of a function like this h(x)=7x-2
Monday, July 16, 2012 at 9:48pm by chchch
Algebra
Find the zeros the function *could someone explain this to me step by step I'm very confused Y=x^2-x-42
Tuesday, November 27, 2007 at 5:19pm by Brittany
Composition (Intro Paragraph)
I'd rephrase that sentence slightly. Everything else seems fine. The song “Real” by country singer James Wesley depicts pieces of real American life and makes a profound distinction between what is truly real and what is merely reality television.
Sunday, March 27, 2011 at 11:21am by Writeacher
Statistics
An insurance sales representative selects 4 policies to review. The group of policies she can select from contains 10 life policies, 5 automobile policies, and 3 homeowners policies. Find the probability of selecting all life policies. The number of ways to select all life ...
Thursday, May 3, 2012 at 9:07am by Ambra
elec
A Fourier series is periodic. If there is a single step function increase in u at some value of t, f(t) is not periodic. If the step function repeated each time t increases by 1, then f(t) would be periodic, and u(t) would be a kind of square wave. In that case you could use a...
Thursday, August 19, 2010 at 11:10am by drwls
Math
Express this function in vertex form by completing the square: 3x^2 - 4x + 1 PLEASE SHOW STEP BY STEP!!!
Monday, September 17, 2007 at 9:01pm by Need Help
Math
Basically, when could you use what you learn in class in real life? (Like a bridge builder would use angles to be able to support the bridge) Like how could someone use this information in real life?
Thursday, September 10, 2009 at 9:29pm by AJ
math
Given is that the ratio of height is 1:100. This means that for every unit of height in the photograph, the real object is 100 times as large. So, e.g. if we have an object that measures 20 cm on the photograph, this means the object is 2000 cm in real life. So if you have a ...
Monday, October 27, 2008 at 1:10pm by Christiaan
math
Let the Function a @ b be defined as 3a + 2b for all real numbers a and b. If u and v are real #'s for which u and v = v @ u = 20. What is the value of 2u @ 3V?
Wednesday, January 27, 2010 at 5:14pm by Carmianerlo
Math
in 1992, the life expectancy of males in a certain country was 69.8 years. in 1999, it was 72.4 years. Let E represent the life expectency in year t and let t represent the number of years since 1992. The linear function E(t) that fits the data is E(t) =_ t+_ Use the function ...
Tuesday, January 11, 2011 at 2:26am by michelle
Algebra
What you wrote for g(f(x))is correct. As a final step, they want you to substitute 1/2 for x. I skipped the step of writing down the g(f) function. You can start inserting -1/2 for x directly f(-1/2) = (-1/2)^2 -3 = -2 3/4 = -11/4 g(f(1/2)) = -22/4 +1 = -18/4 = -4 1/2
Friday, June 12, 2009 at 11:44pm by drwls
math
it's a greatest integer function (AKA step function) not absolute value.
Tuesday, May 6, 2008 at 6:14pm by Jennifer
algebra
Find a bound on the real zeros of the polynomial function f(x)=x^4+x^3-4x-6 Every real zero of f lies between ______ and______.
Saturday, June 8, 2013 at 11:26pm by Sharday
calculus
Find a rational function f : R → R with range f(R) = [-1, 1]. (Thus f(x) = P(x) /Q(x) for all x belongs R for suitable polynomials P and Q where Q has no real root). R(real numbers)
Saturday, November 17, 2012 at 4:53pm by yin
College algebra
Use the rational zeros theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers f(x)=9x^4+28x^3+66x^2+196x+21 Find the real zeros of f Use the real zeros to factor f f(x)=
Tuesday, May 14, 2013 at 6:25pm by Alex
math
Thank you for your help :) "The piecewise function f(x)= n(x^3)-x______when____x<(or=to)1 =m(x^2)+5_______when_____x>(or=to)1 is differentiable everywhere. What is n? If you could explain step by step how to do this that would be great because I just do not ...
Monday, January 17, 2011 at 8:52pm by APPRECIATIVE STUDENT
factoring
can this equation be factored further? y= x^4+2x^3+4x^2+8x+16 Not in the real number system. If you plot the function, you will see the minimum is at x=-1.1 (approx) and y is positive. At no x does the function equal zero, so there are no real roots, which means, no factors. ...
Wednesday, July 26, 2006 at 12:08pm by kristie
math
i need help with the domain and range of a step function. the equation is f(x)= 59.99 + .29m thanks What is the m in the function?
Monday, December 18, 2006 at 3:55pm by mat
college algebra
use rational zeros theorem to find all the real zeros in the polynomial function. use zeros to factor f over real numbers. f(x)=x^3+10x^2-13x-22 find real zeros of f? use real zeros to factor f?
Friday, August 24, 2012 at 9:58pm by Bella
Algebra
Close. The domain is all the possible x values and the range is all the possible y values. *I'm sure there is a more general way of phrasing it but my english sucks sorry.* Lets use an example y = x. There is no restrictions such as undefines so the domain and range are ...
Wednesday, April 2, 2008 at 2:22pm by Anonymous
math
Could you show me step by step how to find the inverse of this problem: log with base of 2 (x+1) Thanks! It is not clear what the problem is. You are given a function of x. Let's calli it y. Are you trying to come up with an equation for x in terms of y? If log(base2)of (x...
Friday, July 21, 2006 at 1:50pm by kristie
college algebra
form a polynomial f (x) with real coefficients having the given degree and zeros. degree 5; zeros 5; -i; -6+-i f(x)= a(?) Please show step by step work.
Sunday, November 18, 2012 at 10:58pm by ladybug
Pre-Calculus
A rectangle is bounded by the x-axis and the semicircle y = √36 – x2, as shown in the figure below. Write the area A of the rectangle as a function of x, and determine the domain of the area function. A = all real numbers except x = 36 all real numbers except x...
Sunday, October 2, 2011 at 8:43pm by Amanda
science
Does anybody know any real life example of a nucleus Are you speaking of nucleus as in the nucleus of an atom or the nucleus of a living organism? If the former, the nuclear atom bomb or H bomb or the decay of radioactive materials to bombard some cancer patients to kill the ...
Sunday, April 15, 2007 at 3:24pm by Amy L.
algebra
In 1995, the life expectancy of males in acertain country was 67.5 years. In 2002, it was 70.8 years. Let E represent the life expectancy in year t and let t represent the number of years since 1995. The linear function E(t) that fits the data is E(t)=?t+?. Use the function to...
Sunday, February 21, 2010 at 8:27pm by Anonymous
geometry
Create a word problem about a real life situation involving perimeter and area of a composite shape. I don't know any real life situations involving perimeter and area of a composite shape. Need Help. Please Help.
Wednesday, December 19, 2012 at 6:37am by emily
chem
ok my professor lost me when explaining this material so please bare with me and help me step by step one of the questions is: after absorbing 1850J of energy as heat, the temperature of a .500-kg block of copper is 37C what was its initial temperature (the specific heat ...
Wednesday, October 12, 2011 at 11:00am by cheryl
Calculus
Sketch a graph of a function f(x) that is differentiable and that satisfies the following conditions. c) f'(-3) = 0 and f'(1) = 0 Please show me, step by step, how to sketch the problem!
Sunday, May 25, 2008 at 1:00pm by Anonymous
alg. II
Well x can be any real number However y is only integers so domain is all real x but range is only integers (graph looks like a step ladder)
Monday, July 5, 2010 at 8:06pm by Damon
ALGEBRA
The domain of a function is the set of "input" or argument values for which the function is defined. In this case all real nubers ( - infinity , infinity ) The range of a function is the set of all values that the function takes when x takes values in the domain. In ...
Saturday, March 10, 2012 at 6:52pm by Anonymous
math
I dont understand this calculus problem at all. can someone show me step by step? Find all values of x for which the function is differentiable
Saturday, October 3, 2009 at 9:19pm by alison
MAT116- Algebra 1A
What is the difference between domain and range? Describe a real-life situation that could be modeled by a function. •Provide feedback about your classmates’ answers. Describe the values for x that may not be appropriate values even when they are defined ...
Sunday, May 25, 2008 at 3:37pm by shelly, k
Algebra
8.60 ≤ x ≤ 14.80 If you can assume a normal distribution, the midway between the two is $11.70. However, in real life, the wages are most likely positively skewed (most of them at the lower end with relatively few at the higher end). In the real life case, ...
Tuesday, February 2, 2010 at 8:29pm by PsyDAG
Precalc
use completing the square to describe the graph of each function. How do you complete the square with this equations. please show me step by step so that I can understand it. x^2-4x+6
Thursday, October 27, 2011 at 9:09am by Amy
Pre-calculus
can someone show how to graph step by step the polynomial function -x^4 - 4x^2. That is -x to the fourth power minus -4x squared. Please Help!!!
Thursday, September 15, 2011 at 11:39am by Misty
Algebra
In 1994, the life expectancy of males in a certain country was 63.8 years. In 2001, it was 66.0 years. Let E represent the life expectancy in year t and let t represent the number of years since 1994. The linear function e(t) that fits the data is? Use the function to predict ...
Sunday, January 29, 2012 at 4:33pm by Debbie
algebra116
In 1995, the life expectancy of males in a certain country was 73.8 years. In 2001, it was 76.5 years. Let E represent the life expectancy in year t and let t represent the number of years since 1995. The linear function E(t) that fits the data is__. Use the function to ...
Sunday, August 29, 2010 at 6:18pm by Anonymous
Math 117
In 1991 the life expectancy of males in a certain country was 73.7 years old, In 19951995 it was 77.4 years. Let E represent the life expectancy in year (t) and let (t) represent the number of years since 1991 What is the linear function fits the data. Use the function to ...
Thursday, April 30, 2009 at 1:40pm by shauna
math
In 1995, the life expectancy of males in a certain country was 62.1 years. In 1999, it was 65.7 years. Let E represent the life expectancy in year t and let t represent the number of years since 1995. what is the linear function? Use the function to predict the life expectancy...
Sunday, July 10, 2011 at 9:20pm by elizabeth
elec
well the text in my notes just states that u(t) is a step function..and therefore how do i determine if its periodic .. To my understanding the unit step signal is not periodic..is that assumption right?
Thursday, August 19, 2010 at 11:10am by jon
math (word problem)
In 1994, the life expectancy of males in a certain country was 65.7 years. In 2000, it was 69.0 years. Let E represent the life expectancy in year t and let t represent the number of years since 1994 the linear function E(t) that fits the data is E(t)=?t+? use the function to...
Friday, November 6, 2009 at 2:11pm by scooby
Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>
For Further Reading
