Chapter 8: Problem 89
Evaluate the expression. \(\frac{1}{y^{2}}\) when \(y=5\)
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Write your answer as a power or as a product of powers. $$ 5^{3} \cdot\left(5 a^{4}\right)^{2} $$
Use substitution to solve the system. $$\begin{aligned}&-3 x+y=4\\\&-9 x+5 y=10\end{aligned}$$
Then evaluate the expression when \(a=1\) and \(b=2\). $$ \left(a^{2} b\right)^{4} $$
What point do all graphs of the form \(y=a^{x}\) have in common? Is there a point that all graphs of the form \(y=2(a)^{x}\) have in common? If so, name the point.
Complete the statement using \(>\) or \(<\). $$ \left(6^{2} \cdot 3\right)^{3} \geq 6^{5} \cdot 3^{3} $$
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