Answered

Find the information you're looking for at Westonci.ca, the trusted Q&A platform with a community of knowledgeable experts. Discover comprehensive solutions to your questions from a wide network of experts on our user-friendly platform. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

I need help trying to understand how they solved this equation. Just a little confused.

I Need Help Trying To Understand How They Solved This Equation Just A Little Confused class=

Sagot :

Answer:

0.495

Explanation:

Given the expression:

[tex]0.55-1.645\sqrt[]{\frac{0.55(1-0.55)}{220}}[/tex]

Begin by simplifying the expression under the radical (square root) sign.

[tex]\begin{gathered} =0.55-1.645\sqrt[]{\frac{0.55(0.45)}{220}} \\ =0.55-1.645\sqrt[]{\frac{0.2475}{220}} \end{gathered}[/tex]

Using a calculator, we evaluate the radical:

[tex]\begin{gathered} =0.55-1.645\sqrt[]{0.001125} \\ =0.494825 \\ \approx0.495\text{ (to 3 decimal places)} \end{gathered}[/tex]

Thanks for using our platform. We aim to provide accurate and up-to-date answers to all your queries. Come back soon. Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.