Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
how do I find the domain and range to this function?
In an isosceles triangle, the two equal sides are 3.0 cm. The length of the base b cm depends on the size of the top angle a°. Determine the Domain of the function and the range for the function b(a).
how can the answer be:
0 < a < 180 , and
0 < b < 6
I don't understand anything…. can anyone explain this… Thank you.
1 Answer
- ?Lv 71 year agoFavorite Answer
Imagine the 2 equal sides are hinged where they meet, so they can open and
close. As they close up, angle a approaches 0º, and side b approaches 0.
As the equal sides open up, angle a increases, but, since it's in a ∆, a can't be
≥ 180º. Also, as the equal sides open, side b will approach 6 cm.
Thus, as stated, 0 < a < 180, and 0 < b < 6
