grantjaylynn
03.07.2020 •
Mathematics
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Diagnostic
8 Welcome, Dion Smith
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A Math
Geometry
Common Core
B.7 Midpoint formula: find the midpoint 2YG
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Questions
answered
A line segment has the endpoints Q(6,5) and R(4, 7). Find the coordinates of its midpoint M.
Write the coordinates as decimals or integers.
M=(
OD
0
Time
elapsed
Submit
0000
14
SmartScore
out of 100
Work it out
Solved
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Ответ:
21.5secs
Step-by-step explanation:
Given the function that models the height of an object as
h(t) = -16t^2+ 344t
The object hit the ground at h(t) = 0
Substitute
0 = -16t^2+ 344t
16t^2 = 344t
16t = 344
t = 344/16
t = 21.5
Hence it takes 21.5secs for the object to hit the ground