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Snezhnost [94]
3 years ago
6

What is the value of Y in the exponential decay function when x equals 3? Y=0.25x

Mathematics
2 answers:
Taya2010 [7]3 years ago
7 0
Plug three in wherever there is an x
y=.25(3)
y=.75
mihalych1998 [28]3 years ago
7 0
Y=ar^x when x=3

y=ar^3  now you just need the initial value a, and the rate, r...
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6x-y=-23 8x+3y=-9 Substition method (Show it step by step please!)
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Answer:

solution is (- 3, 5 )

Step-by-step explanation:

given the 2 equations

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rearrange (1) expressing y in terms of x

y = 6x + 23 → (3)

Substitute y = 6x + 23 into (2)

8x + 3(6x + 23 ) = - 9

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substitute x = - 3 into (3)

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