Answer:
These are the questions my teacher asked me. I hope this helps anyone that needs it.
Say in Spanish: I walked to the post office and bought a postcard.
Que hiciste con el tarjeta postal? Ex.
I put the postcard in the mailbox.
Say in Spanish: There was nobody in the post office
Say in Spanish: I saw a laptop.
Explanation:
<span>el área de un circulo es </span>
<span>A=π*r² </span>
<span>si al radio grande lo llamamos R y al pequeño r tenemos que el área de la corono va a ser igual a el área del circulo grande, menos la del pequeño, tenemos que </span>
<span>Área corona=π*R²-π*r², sacando factor común π </span>
<span>=π(R²-r²), como ya sabemos algunos datos, los reemplazamos en la ecuación y despejamos R </span>
<span>27=π(R²-3²) </span>
<span>(27/π)+9=R² </span>
<span>17.59≈R² </span>
<span>4.19≈R </span>
<span>espero que te sirva</span>
Answer: The number would be 60,000 that is exactly 10 times.
Explanation: