Answer
$1$
Work Step by Step
$\lim _{t\rightarrow -2}\left( t^{2}+5t+7\right) =\left( -2\right) ^{2}+5\times \left( -2\right) +7=4-10+7=1$
Calculus: Early Transcendentals (2nd Edition)
by Briggs, Bill L.; Cochran, Lyle; Gillett, Bernard
Published by
Pearson
ISBN 10:
0321947347
ISBN 13:
978-0-32194-734-5
Chapter 2 - Limits - 2.3 Techniques for Computing Limits - 2.3 Exercises - Page 76: 26
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