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V125BC [204]
3 years ago
7

NEED ANSWER ASAP!!!!!!!!!

Mathematics
1 answer:
Kamila [148]3 years ago
6 0

Answer:

10,000

Step-by-step explanation:

f = feet above ground

r = rate of descent

m = minutes

 

f = 30000 - r · m

f = 30000 - 20000m

 

After five minutes:

 

f = 30000 - 2000(5)

f = 30000 - 10000

f = 20000

 

After five minutes the plane is at 10,000. feet.

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We know that when two lines are perpendicular, the product of their slopes is -1.

Let us check the product of two slopes m₁ and m₂

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