1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lubov Fominskaja [6]
3 years ago
9

PLEASE HELP! A campground rents bicycles by the hour. The total cost y to rent a bicycle, including deposit, is presented by the

function y=1/3x+12. The graph of this function is below.
What do the domain and range of the function represent in this situation?

Mathematics
1 answer:
Lelu [443]3 years ago
4 0
     The domain and the range of the function are all possible values of the x and y, respectively,  that function can take.
     The range is given by:

y_{o}= \frac{3}{3} +12 \\ y_{o}=12 \\  \\ y_{e}= \frac{27}{3} +12 \\ y_{e}=21 \\  \\ \boxed {Im=(y\in R  \mid 12\leq y \leq 21)}
 
     The domain is given by:

\boxed {D=(x\in R  \mid 3\leq y \leq 27)}
You might be interested in
926 divided by 38 and remainder?​
docker41 [41]

Answer:

when 926 is divide by 38 it's remainder is 14.

6 0
3 years ago
Read 2 more answers
It took a submarine 3 seconds to drop to 12 feet below sea level from the surface. what is the rate of descent
kotegsom [21]
For everyone 4 feet he drops, 1 second will pass. (for everyone 1 second that goes by, he will be 4 feet lower)
12/3=4
4 0
3 years ago
PLEASE HELP PLEASE
GarryVolchara [31]

The x-coordinate in the solution of the system of equations  y = -2/3x and 4x - 9y = -40 is -4

<h3><u>Solution:</u></h3>

<em><u>Given that system of equations are:</u></em>

y = \frac{-2}{3}x  ------- eqn 1

4x - 9y=-40 ------ eqn 2

We have to solve the above given system of equations and find the x - coordinate

<em><u>Substitute eqn 1 in eqn 2 and solve for "x"</u></em>

4x - 9(\frac{-2}{3}x) = -40\\\\4x + \frac{18x}{3} = -40\\\\12x + 18x = -120\\\\30x = -120\\\\x = \frac{-120}{30} = -4

x = -4

Thus the x-coordinate in the solution of the system of equations is -4

6 0
3 years ago
Mathematics can I have a hand.... :´)
iogann1982 [59]

Answer: I honestly don’t know

Step-by-step explanation: I’m so sorry

4 0
3 years ago
Ornithologists, scientists who study birds, tag sparrow hawks in 13 different colonies to study their population. They gather da
RSB [31]

Answer:

Step-by-step explanation:

Hello!

The variables of interest are:

Y: % of new sparrow hacks.

X: % of sparrow hacks that return after migration.

a. see attachment

b. Using a statistics software I've estimated the regression line:

^Y= 30.29 -0.26X

The second attachment shows scatterplot with the estimated regression line.

c.

The estimated slope is 30.29

30.29% is the estimated average percentage of new sparrows hawk in the colony when the percentage of returned sparrow hawks is zero.

-0.29 is the modification of the estimated average percentage of new sparrow hawks in the colony when the percentage of returned sparrow hawks increases by 1%.

d. To know how does the model fits the regression you have to calculate the determination coefficient.

R²= 0.43

The coefficient of determination gives you an idea of how much of the variability of the dependent variable (Y) is due to the explanatory variables. Its range is from 0 to 1, where zero means that the regression line doesn't fit the data and 1 means that there is a perfect fit.

Now for the estimated model, only 43% of its variability is given by the explanatory variable, this is too low so the data doesn't fit the model.

e. The residues represent the distance between each observation Yi and the regression line, symbolically:

ei= Yi-^Yi

The % of new sparrow hawks that is further away from the regression line is Y=8, the residue corresponding to this value is ei= -5.45

f. You need to predict the percentage of new birds in the colony if the return percentage is 70%, symbolically:

Y/X=70

To do so you need to replace the given value of X is the estimated regression model:

^Y= 30.29 -0.26X

^Y= 30.29 -0.26*10

^Y= 12.09%

I hope this helps!

3 0
3 years ago
Other questions:
  • How many diagonals can be drawn from a vertex of an n-gon?
    7·1 answer
  • Translate the sentence into an equation using n as the unknown number. Then solve the equation for n. Round to the nearest
    9·1 answer
  • A manufacturing company builds construction machinery. It sells 10 machines for $18,100 and 20 machines for $26,600. Which equat
    9·1 answer
  • Maria and Alex are opening a savings accounts. Maris deposits $50, she plans to add $10 each week. Alex deposits $30, he plans t
    15·1 answer
  • If m = 80° and m = 40°, then m 1 =
    10·1 answer
  • An adventure company wants to run a zip line from the top of one building that is 95 feet tall to the top of another building th
    5·1 answer
  • I wanna finish this hw but I don't know how to do it pls teach me
    5·2 answers
  • Clara and Miles each improved their yards by planting
    14·1 answer
  • which of the following equation represents a linear function a. f(x) =6x-3 b. f(x) = 7x(x+1) c.f(x) = x2+3x2 d. f(x) = x2(x-3​
    10·1 answer
  • What is the slope of the line that passes through the points (-9, -7) and<br> (-11, 6)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!