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777dan777 [17]
3 years ago
6

PLEASE HELP PLEASE PLEASE

Mathematics
2 answers:
ch4aika [34]3 years ago
7 0
1) function 1/x, vertical stretch is 2/x
2) reflection over x axis is -2/x,
3) left shift is -2/(x+3)
4) down  4 units -2/(x+3) -4
it should be <span>B. y= -2/(x+3) -4</span>
PolarNik [594]3 years ago
5 0
The answer is b y=-2/(x+3)-4
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LAY
marta [7]

Answer:

A

Step-by-step explanation:

how long is the ball in the air ?

that is the same as asking : after how many seconds will the ball hit the ground (= reach the height of 0) ?

so, that means we need to find the zero solution of h(t).

at what t is h(t) = 0 ?

when at least one of the factors is 0 :

2(-2 - 4t)(2t - 5)

we have 3 factors

2 : can never be 0.

(-2 -4t) : can only be 0 for negative t, which does not make sense in our scenario (we cannot go back in time, only forward).

(2t - 5) : is 0 when 2t = 5 or t = 2.5

so, A is the right answer.

FYI : the starting height (on the hill) is given by t = 0 :

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2 years ago
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lara [203]
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