Category: Algebra

One type of lawn fertilizer consists of a mixture of nitrogen, phosphorus, and potassium. An 80 lb sample contains 8 more lb of nitrogen and phosphorus than potassium. There is…

If possible, solve the system of linear equations and check your answer. 3x + 7y = 9 x + 5y = 11   Solution:-   The solution is (-4,3).  

Solve the logarithmic equation. 7log x = -14   Solution:-   First divide both of the equation by the common factor. log x = -2 now write an equivalent exponential…

Solve the exponential equation. 2.4 e-1.2x = 1   Solution:-   The solution is x = .7296  

The cost c, in dollars, for bag of oranges is a function of the weight W (in pounds) of the oranges, where c = f(W). What is the interpretation (practical…

The cost c of a bag of oranges is a function of the weight W of the oranges. Suppose this function is one-to-one. Express this fact using inverse function notation,…

Find the inverse of the following function. f(x) = 7x – 5   Solution:-   f-1(x) =  

Choose the statement that represent the inverse of the given statement. Then express the statement and its inverse symbolically. Add 1 to x multiply the result by 2. Verbally, the…

Choose the statement that represents the inverse of the given statement. Then express the statement and its inverse symbolically. Verbally, the inverse is correctly expressed by which choice? Subtract 4…

State the inverse actions of the actions below. Opening the door, turning on the lights, and walking through the door.   Solution:-   Walking back through the door, turning off…