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Chapter 4: Q. 16 (page 194)

In Problems 15鈥�26, determine which functions are polynomial functions. For those that are, state the degree. For those that are not, tell

why not.

f(x)=5x2+4x4

Short Answer

Expert verified

f is a polynomial function of degree4

Step by step solution

01

Given information

f(x)=5x2+4x4

02

Calculation

f(x)=5x2+4x4

fis a polynomial function of degree4

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Most popular questions from this chapter

In Problems 57鈥� 62, find the real zeros of f. If necessary, round to two decimal places.

f(x)=x3+3.2x2-16.83x-5.31

Solve the inequality 3-4x>5. Graph the solution set.

The concentration C of a certain drug in a patient's bloodstream t hours after injection is given by

Ct=50tt2+25

Part (a): Find the horizontal asymptote of Ct. What happens to the concentration of the drug as t increases?

Part (b): Using your graphing utility, graph C=Ct.

Part (c): Determine the time at which the concentration is highest.

Find the domain of the rational function.

-4x2x-2(x+4)

Solve each inequality algebraically.

(x-1)(x+1)x鈮�0
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