1) The revenue, R, of producing and selling x Hearing Aids is modeled by the equation R = -4x2+ 118x How many hearing aids need to be produced and sold in order to earn a revenue of $850 Round your answers to the nearest whole number.

Q: What is the value of x that would make the equation (27x) 3 = 243 true?

A: Given:          (27x)5/3 = 243         (27x)5/3  = 275/3  Powers are equal on both sides of…

Q: The equation x? + 3x – 10 = 0 has two solutions. Enter them below.

A:

Q: How would i solve the following equation? I do not know what to do first   Find a value of c so that…

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Q: Change this general form into standard equation and show your solutions x2+y2-4x+y+4=0

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Q: What is the value of x in the equation 18 (6x – 12) = 4x + 2? %3D О -3 3. 1/2

A: We can find the value of 'x' from the given equation as below

Q: A management consultant estimates that the number h of hours per day that employees will work and…

A: At p = 300 h is comes as put the value in given equation

Q: Solve the following equation for x: 4x - b = 2x + c

A: 4x-b=2x+c4x-2x=b+c

Q: 6) Create an equation that is equivalent to the given equation: 2(x+ 3) = 14.

A:

Q: (b) By using (a) or otherwise, determine for what values of c the equation |2x-1|=x+c has exactly…

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Q: If 6x + y = 5 is a true equation, what would be the value of -9+ 6x + y?

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Q: The equation y = -0.3x + 13 represents the height, y, in inches of a candle x hours after burning.…

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Q: The quantity demanded each month of the Walter Serkin recording of Beethoven's Moonlight Sonata,…

A: Since you have asked a question with multiple question in a single request, we would be answering…

Q: The value of stock A(x) can be represented as A(x) = 0.65x^2−8x+10 where x represents the number of…

A: We need to calculate how long it will take to both stocks be worth the same amount ⇒We need to find…

Q: How can you tell by inspection that the equation x/(x + 2) = -2/(x + 2) has no solution?

A: Given that : The equation is xx+2 =- 2x+2 .

Q: Solve; a. If y = k/x, find the value of k using x = 8 and y = 12.b. Substitute the value for k into…

A: Given Data The equation is y=k/x.   (a) Put the value in the equation y=k/x at x=8 and y=12 to…

Q: The profit P, in dollara, gained by selling x computers is modeled by the equation…

A:

Q: The revenue in dollars from the sale of x calculators is given by the equation R(x) = 6 + /540x- 2x2…

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Q: The marketing research department of a computer company used a large city to test approximately by…

A: Solve the following

Q: -9x + 12y 24 y%3D 4 x-5 = -

A: Given -9x+12y=24y=34x-5

Q: The quantity demanded each month of the Walter Serkin recording of Beethoven's Moonlight Sonata,…

A: Given:- The quantity demanded each month of the Walter Serkin recording of Beethoven's Moonlight…

Q: The productivity of a rice thresher is given by the equation: xy' = x – 2y, where x is the percent…

A:

Q: If 7x – 6y = 2 and -2x – y = 3 are true equations, what would be the value of 7y? 5x -

A: Given equations 7x - 6y = 2  { Let this be equation number (i) } -2x - y = 3   { Let this be…

Q: The cost equation for a company to install X square feet of brick pathway is C =208+13x, and the…

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Q: The area A, in square meters, of a rectangle with a perimeter of 100 meters is given by the equation…

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Q: The relationship between marketing expenditures (x) and sales (y) is given by the following formula,…

A: Given,           y=7x-0.25x2+6

Q: solve the equation for x. 5x=(3x-2)(m+4)

A:

Q: Write an equation in the form Ax + By = C, given that m=3/4 and y-intercept is (0,-4), where A, B…

A: First we will substitute the value of slope m= 3/4 and y-intercept b=-1 in slope-intercept form y=…

Q: A person buys a phone for $81 and signs up for a single-line phone plan with 2000 monthly anytime…

A: Refer to the question,As person buys a phone at $81 and monthly plan costs $ 119.96Let t be the…

Q: A management consultant estimates that the number h of hours per day that employees will work and…

A:

Q: A tree farm charges $75.00 for a 5 - foot orange tree and $50.00 for delivery regardless of the…

A: A tree farm charges $75.00 for a 5 foot orange tree and $50.00 for delivery and delivery charge is…

Q: 1. A mobile internet company charges 90 pesos per week plus 2 pesos charge per minute of internet…

A:

Q: The height of a ball that is launched from the ground is given by taking -16 times the time in…

A: The height of a ball that is launched from the ground is given by taking -16 times the time in…

Q: x = 1 y = -8 %3D

A:

Q: What are the solutions to the following equation?

A: We will solve for r as follows

Q: My neighbor has a square pool in her backyard. I decided I want my own pool. I asked my neighbor…

A: Let the length of neighbour’s pool be x ft. The length of my pool is greater than 4 by the length of…

Q: The quantity demanded each month of the Walter Serkin recording of Beethoven's Moonlight Sonata,…

A: Given

Q: If 2x + 8y 9 is a true equation, what would be the value of 4x + 16y?

A: Linear equation

Q: 5. A plumber charges $25 for a service call, plus $50 per hour of service. Which equation below…

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Q: y(1) + 2y"" + y"+ 2y' = xe-2x

A: Here we use one method of linear differential equations with constant coefficients. i.e. The…

Q: Five thousand kg of steel containing 8% nickel is to be made by mixing a steel containing 14% with…

A: Given:- Five thousand kg of steel containing 8% nickel is to be made by mixing a steel containing…

Q: b) A monthly service fee to download e-books is $4.95, plus $3.99 per book downloaded. Write an…

A: The object is to write an equation that represents the total cost.

Q: Solve, by graphing, for x when: |x-91=x +3 X- {3, 2} B x = {-3, 2} C x = {-2, 3} x = {-3, -2}

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Q: y = -=x +3 5 y = x +8 %3D 2/5

A: Given: Two lines y=-25x+3 and y=25x+3 It is known that the standard form of an Equation of line is:…

Q: Describe in words the variation shown by the equation z =k√x/y2.

A: z=kxy2

Q: a.If y = kx2, find the value of k using x = 2 and y = 64. b.Substitute the value for k into y = kx2…

A: To Determine: a) find the value of k. b) substitute the value for k into y=kx2 and write the…

Q: A management consultant estimates that the number h of hours per day that employees will work and…

A:

Q: robot monkey is jumping from one tree to another. The monkey’s height above the ground is modelled…

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.