Answers edited by G_Dub
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How do you simplify
(
8.2
×
10
4
)
+
(
4.1
×
10
4
)
?
The height of a ball (in meters)
t
seconds after it is thrown is given by
y
(
t
)
=
−
4.9
t
2
+
11.6
t
+
22.5
. From what height was the ball thrown?