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Find all values of $s$ such that $(s + 4)(s - 3) ≤ 0$. Give your answer as an interval.

 

Find all values of $x$ that satisfy $x(x+7.5) > 38.5$. Give your answer as an interval.

 

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

Guest Jan 16, 2018

Best Answer 

 #1
avatar+26493 
+3

Perhaps these graphs will help:

 

.

Alan  Jan 16, 2018
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1+0 Answers

 #1
avatar+26493 
+3
Best Answer

Perhaps these graphs will help:

 

.

Alan  Jan 16, 2018

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