Looking for answers? Westonci.ca is your go-to Q&A platform, offering quick, trustworthy responses from a community of experts. Experience the convenience of finding accurate answers to your questions from knowledgeable professionals on our platform. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

For what values of a is the distance between P(a,3) and Q(5,2a) greater than √26

Sagot :

luana
[tex]P(a,3)\ \ \ Q(5,2a)\\\\ PQ=\sqrt{(x_Q-x_P)^2+(y_Q-y_P)^2}\\\\ PQ>\sqrt{26}\\\\\sqrt{(5-a)^2+(2a-3)^2}>\sqrt{26}\\\\\sqrt{25-10a+a^2+4a^2-12a+9}>\sqrt{26}\\\\\sqrt{5a^2-22a+34}>\sqrt{26}\ \ |^{2}\\\\ 5a^2-22a+34=26\ \ \ |Subtract\ 26\\\\ 5a^2-22a+8=0\ \ \ |Factoring\\\\(a-4)(5a-2)=0\\\\ a=4\ \ or\ \ 5a=2\\ a=4\ \ or\ \ a=\frac{2}{5}[/tex]