We have  \begin{align*}
\frac{\sqrt{2.5^2 - 0.7^2}}{2.7-2.5} &= \frac{\sqrt{6.25 - 0.49}}{2.7-2.5} = \frac{\sqrt{5.76}}{0.2} = \frac{\sqrt{576/100}}{0.2}\\
&= \frac{\sqrt{576}/\sqrt{100}}{0.2} = \frac{24/10}{0.2} = \frac{2.4}{0.2} = \boxed{12}.\end{align*}
Question:
Simplify: $\frac{\sqrt{2.5^2-0.7^2}}{2.7-2.5}$.
Answer:
Let's think step by step.

user
12
Simplify: $\frac{\sqrt{2.5^2-0.7^2}}{2.7-2.5}$.
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