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David Swenson verified

Numerade educator

Write an equation describing the relationship of the given variables. y varies inversely as the cube root of x and when x = 27, y = 3.

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INSTANT ANSWER

Write an equation describing the relationship of the given variables. Y varies directly as the fourth power of x=3,y=405

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Teresa Fuston verified

Numerade educator

Consider the graph of f shown in the figure below. A graph of a curve with local maximums at (1,5), and (5,7) and local minimums at (3,1), and (7,3). The graph has the y-intercept (0,2) and passes through the points (2,3), (4,3.5), and (6,5). Estimate the average rate of change from x=4 to x=5. Enter your estimate as a decimal number (not as a fraction), rounded to one decimal place. Average rate of change =

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Babita Kumari verified

Numerade educator

Consider the relationship 9r+2t=9. a. Write the relationship as a function r=f(t). Enter the exact answer. f(t)= b. Evaluate f(-9). f(-9)= c. Solve f(t)=13 . t=

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Bailey Williams verified

Numerade educator

Consider the relationship 9r+2t=9. a. Write the relationship as a function r=f(t). Enter the exact answer. f(t)= b. Evaluate f(-9). f(-9)= c. Solve f(t)=13. t=

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A basic cellular package costs $20/month for 60 minutes of calling with an additional charge of $0.20/minute beyond that time. The cost function C(x) for using x minutes would be If you used 60 minutes or less, i.e. if if x?60, then C(x)=20 (the base charge). If you used more than 60 minutes, i.e. (x?60) minutes more than the plan came with, you would pay an additional $0.20 for each of those (x?60) minutes. Your total bill would be C(x)=20+0.20(x?60). If you want to keep your bill at $50 or lower for the month, what is the maximum number of calling minutes you can use? The maximum calling minutes you can use is Number minutes.

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Determine whether the relation represents y as a function of x. x2+y2=4

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Babita Kumari verified

Numerade educator

a. Determine whether the relation represents y as a function of x. y=x2

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Babita Kumari verified

Numerade educator

a. Determine whether the relation represents y as a function of x. y=x2

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Maria Dearborn verified

Numerade educator

For a certain company, the cost for producing x items is 50x+300 and the revenue for selling x items is 90x-0.5x2.

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