+0  
 
0
137
1
avatar

Find all values of $t$ such that $8t^2 \le 3-10t$.

Guest Feb 28, 2018
Sort: 

1+0 Answers

 #1
avatar+86622 
+1

8t^2 ≤ 3 - 10t     rearrange as

 

8t^2 + 10t - 3 ≤ 0    factor

 

This graph may help :

 

https://www.desmos.com/calculator/tmxfctalnk

 

The values that make this true  are   t  =   [ -1.5, 0.25 ]

 

 

cool cool cool

CPhill  Feb 28, 2018

11 Online Users

avatar
avatar
New Privacy Policy (May 2018)
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  Privacy Policy