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Tutors Answer Your Questions about Functions (FREE)
Question 36403: Can someone show me how to simplify these 2 questions
1) (2x)^2 * (3x^4)
A)6x^8
B)12x^6
C)6x^6
D)324x^6
and
2) (-3x / 2y^3)^-2
A) 4y^3 / 9x^2
B) -4y^6 / 9x^2
C) 4y^6 / 9x^2
D) -4y^6 / 6x^2
Please show me how you worked these out...it confuses me..thanks
Click here to see answer by rapaljer(3622)   |
Question 36596: Hi
I have the following formular that need to change it to show what X equals. The formular is...
Y = ((X-F)/X) x 100
So far I have the following...
((X-F)/X) = Y/100
Please re-arrange the formular so I can solve for X.
Thanks
David
Click here to see answer by atif.muhammad(135) |
Question 36532: Please Help Me!!!!
I need to find the equation of the line passing through the point
(2,7) with a slope of m=2
A)y=1/2x-3/2
B)y=2x-12
C)y=1/2x+6
D)y=2x+3
Please show your work, so that I can learn how this is done...thanks
Click here to see answer by elima(1433) |
Question 36785: Please explain functions, relations and arguments. I need guidance to answer the following questions:
1. Which of the following are functions? Explain reasoning for a, b, and c.
a. f(x) = 2 if x>1
f(x) = -1 otherwise
b. f(x) = 5 if x>0
f(x) = -5 if x<0
c. f(x) = 10/x
2. Suppose you have a lemonade stand, and when you charge $2 per cup of lemonad you sell 120 cups. But when you raise your price to $3 you only sell 60 cups. Write an equation for the number of cups you sell as a function of the price you charge. Denote "C" for number of cups, and "P" for the price you charge. Assume the function is linear.
3. Take a look at the table below and write out an equation for f(x).
x -2 -1 0 1 2
f(x) -5 -2 1 4 7
4. For each of the relationships below, explain whether you think it is best described by a linear function or a non-linear function. Explain your reasoning thoroughly.
a. How fast it takes you to get to work as a function of how fast you drive.
b. Probability of getting into a car accident as a function of how fast your drive.
c. Your height as a function of age (from age 0 to 100).
Click here to see answer by stanbon(26296) |
Question 37588: Suppose you throw a baseball straight up at a velocity of 32 feet per second. A function can be created by expressing distance above the ground, s, as a function of time, t. This function is s = -16t2 + v0t + s0
· 16 represents ½g, the gravitational pull due to gravity (measured in feet per second 2).
· v0 is the initial velocity (how hard do you throw the object, measured in feet per second).
· s0 is the initial distance above ground (in feet). If you are standing on the ground, then s0 = 0.
a. What is the function that describes this problem?
b. The ball will be how high above the ground after 1 second?
Show work in this space.
c. How long will it take to hit the ground?
Show work in this space.
d. What is the maximum height of the ball?
Show work in this space.
Click here to see answer by venugopalramana(3286)  |
Question 37624: I am trying to help my son with his Algebra but I don't understand it either! The problem says to identify the range and domain of each parabola. There are 2 pages of them but I'm going to try and figure them out from these two problems: y=-x^2-3 and the other is y= 2x^2 +3 . From reading in the book I think the domain on both is all real numbers but on the range on the first would it be all real numbers less than or equal to -3. And on the second would it be R= all real numbers greater than or equal to 3. I'm very unsure of this!
Click here to see answer by junior403(76) |
Question 38440: I HAVE A WORD PROBLEM I NEED HELP WITH! A monthly water
bill is calculated by using formula
n = (8500c - 53850)/9
where n is the number of gallons and c is the monthly
cost. Solve for c and compute the billfor quanity of
1100 gallons.
Thanks for your help.
Click here to see answer by Nate(3495) |
Question 38440: I HAVE A WORD PROBLEM I NEED HELP WITH! A monthly water
bill is calculated by using formula
n = (8500c - 53850)/9
where n is the number of gallons and c is the monthly
cost. Solve for c and compute the billfor quanity of
1100 gallons.
Thanks for your help.
Click here to see answer by AnlytcPhil(958) |
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