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3 years ago

PLEASE HELP ALGABRA 1

Mathematics

1 answer:

wolverine [178]3 years ago

8 0

Answer:

(1) F(n) = 8050 -400n

(2) 16 days

Step-by-step explanation:

Tylor first day he has left 7,250feet left to climb, this means that he has already climbed his 400ft on his first day

This will produce an arithmetic series for the distances left to climb as each day passes

initial climb = 7,250+400 = 7,650

Arithmetic Series

7650 , 7250 , 6850 , 6450 ......

a = 7650 , d = -400

(1) Explicit formula

F(n) = a + (n-1)d

= 7650 + (n-1)(-400)

= 7650 +400 -400n

F(n) = 8050 -400n

(2) 8050 -400n = 1750

6300 = 400n

n = 6300 /400 = 15.75 = 16 days( approximately)

So after 16days (approximately) Taylor will have 1750ft left to climb.

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