A machine can stamp 40 envelopes in 8 minutes. How many of these machines, working simultaneously, are required or needed to sta
1 answer:
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Answer:
(- 5, 2 )
Step-by-step explanation:
Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
( ,
)
Here (x₁, y₁ ) = (- 6, 1) and (x₂, y₂ ) = (- 4, 3) thus
midpoint = ,
) = (
,
) = (- 5, 2 )
-16t^2+400=0
16t^2=400
take square root on both sides.
4t=20
t=20/4
t=5