The lower the price for purchasing a song from an online music store, the more times the song is downloaded. Let d=r(p) give the average number of daily downloads of a song as a function of the price of the song (in cents). Let p0 be the price currently being charged for the song (in cents). What does the statement p0⋅r(p0) tell you about the number of downloads from the store?     The average daily revenue of the music store if the current price is doubled.   The total number of times the song is downloaded at the current price.   The average revenue earned per download at the current price.   The average daily revenue of the music store from selling the song at the current price.   The total revenue of the music store when p0 songs are downloaded in a day.

Q: A house painter has found that the number of jobs that he has each year is decreasing with respect…

A:

Q: If the car is to be rented for one day, express the total rental expense as a function of the number…

A: Given that a car is rented for one day and is charged $0.45 per mile driven. If x miles are driven ,…

Q: Drag the three points so they simultaneously follow both a LINEAR pattern and an EXPONENTIAL pattern

A: Consider the three points (0, 0), (1, 1) and (-1, -1). They follow the linear pattern y=x And also…

Q: Fill in each blank for the function f(x) = 3x - 6. solve for each   f(-4) f(4) f(-2) f(0)

A: Given function fx=3x-6.  We need to find following parts, f-4, f4, f-2, f0.

Q: Sketch the Function y= X+2

A: Given function : y=x+2

Q: A 400-room hotel can rent every one of its rooms at $120 per room. For each $1 increase in rent, two…

A:

Q: A department store is selling its plastic shoe boxes for $1.50 off the regular price of a shoe box.…

A: Lets , regular cost = rTotal cost = T shoe boxes price is $1.50 off the regular price of a shoe…

Q: Assume that X represents the amount of weekly rainfall and Y represents the amount of weekly grass…

A: The coefficient of determination, Ro = 0.45 Let, X represents the amount of weekly rainfall and Y…

Q: Q3: Evaluate the following integral by changing the order of integration: So S2*xy dx dy

A:

Q: A person rents a moving truck for the day. There is an initial rental fee of $20 and an additional…

A:

Q: The perimeter of a rectangle is 190 meters. Express the area A as a function of the length L, and…

A: The solution is given as

Q: The average water level in a retention pond is 6.8 ft. During a time of drought, the water level…

A: We will solve the following.

Q: What does it mean to plot A as a function of B. What will be on the y-axis and x-axis and why?

A:

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.