Tutors Answer Your Questions about Functions (FREE)
Question 1042867: Suppose the functions g, h, l are defined as follows:
g(x) = 1/2x -3
h(x) = 
l(x) = 2 - x - 3
1.1 Write down Dg and solve the equation 4^g(x) = 8
1.2 Write down Dg+h and solve the equation g(x) + h(x) = 0
1.3 Write down Dg.l without first calculating g(x).h(x) = 0
1.4 Write down Dl/g without first calculating l(x)/ g(x)
Thanks for your help...
Click here to see answer by solver91311(24713)  |
Question 1043037: The amount of people in the city of Blonton is increasing due to children being born and because people are moving to the area.
•The population is increasing due to births by 13% each year and about 2300 people move to the area in any given year..
•The increase due to people moving to the area is represented by the function M(t) = 2300t..
•The population at any time when taking into account new births is found by P(t) = 375,000(1.013)t where 375000 was the initial population and t stands for the number of years after 1990..
If we added these functions together, what would the sum represent?
Click here to see answer by stanbon(75887) |
Question 1043440: if f:A to B where A,B⊂R . f(x)= (1-2x)/(x-5) is a FUNCTION. FIND IT'S INVERSE.
NB- i think it's not a function because input 5 will give no output .but the domain of the function doesn't say anything about 5. if A WOULD BE R-{5} THEN IT WOULD BE A FUNCTION. I AM NOT SURE About it. what does A⊂R INDICATE HERE.HENCE WILL INVERSE BE POSSIBLE ?
Click here to see answer by stanbon(75887) |
Question 1043582: A particular breed of tilapia has its weight W in kg. related to its length L in cm. modeled by the function: W=(3.24 x 10^-3)L^2.
Explain why the function is one to one even if it is a quadratic function. Find the inverse of this function and approximate the length of a single fish if its weight is 400 grams.
Click here to see answer by josmiceli(19441)  |
Question 1043862: Please help. Thanks
The cost of developing pictures is a linear function of the number of pictures ordered. We placed two orders. The first order had 50 pictures and cost $3.75. The second order had 54 pictures and cost $3.95. Find the cost as a function of the number of pictures
Click here to see answer by advanced_Learner(501)  |
Question 1043866: "Pick any number. Add three to your number. Double your result. Add four to that number. Divide the result by 2. Finally subtract your original number. Your result is 5."
1. How does this work with any starting number?
2. Can you create your own "magic" equation?
Click here to see answer by ikleyn(52794)  |
Question 1043886: I need step by step help in solving this:
The Jurassic Zoo charges $6.00 for each adult admission and $2.00 for each child. The total bill for the 144 people from a school trip was $476. How many adults and how many children went to the zoo?
Click here to see answer by josgarithmetic(39618) |
Question 1043947: The owner of Nuts2U Snack Shack mixes cashews worth $5.50 a pound with peanuts worth $2.30 a pound to get a half-pound, mixed-nut bag worth $1.70. How much of each kind of nut is included in the mixed bag?
I need step by step help on this please.
Click here to see answer by josmiceli(19441)  |
Question 1044176: Answer the questions about the following function.
F(x)=x+12/x-4
(a) Is the point(2,9) on the graph of f?
(b) If x = 3 what is f(x)? What point is on the graph of f?
(c) If f(x) = 2, what is x? What point(s) are on the graph of f?
(d) What is the domain of f?
(e) List the x-intercept(s), if any, of the graph of f.
(f) List the y-intercept, if any, of the graph of f.
Click here to see answer by Fombitz(32388)  |
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