Chapter 2: Problem 23
Find integers \(m\) and \(n\) such that \(2^{m} \cdot 5^{n}=16000\).
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Chapter 2: Problem 23
Find integers \(m\) and \(n\) such that \(2^{m} \cdot 5^{n}=16000\).
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Suppose \(t(x)=\frac{5}{4 x^{3}+3}\). (a) Show that the point (-1,-5) is on the graph of \(t\) (b) Give an estimate for the slope of a line containing (-1,-5) and a point on the graph of \(t\) very close to (-1,-5)
Find a polynomial \(p\) of degree 3 such that \(-1,2,\) and 3 are zeros of \(p\) and \(p(0)=1\).
Suppose \(r\) is the function with domain \((0, \infty)\) defined by $$ r(x)=\frac{1}{x^{4}+2 x^{3}+3 x^{2}} $$ for each positive number \(x\). (a) Find two distinct points on the graph of \(r\). (b) Explain why \(r\) is a decreasing function on \((0, \infty)\). (c) Find two distinct points on the graph of \(r^{-1}\).
Explain why the polynomial \(p\) defined by $$ p(x)=x^{6}+7 x^{5}-2 x-3 $$ has a zero in the interval (0,1) .
Write the indicated expression as a ratio of polynomials, assuming that $$ r(x)=\frac{3 x+4}{x^{2}+1}, \quad s(x)=\frac{x^{2}+2}{2 x-1}, \quad t(x)=\frac{5}{4 x^{3}+3} $$. $$ \frac{s(1+x)-s(1)}{x} $$
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