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alexandr402 [8]
3 years ago
13

if f(1) = -5 and f(n) = f(n-1) +7, find the first four terms and the common difference of the sequence

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
6 0

Answer:

- 5, 2, 9, 16 and d = + 7

Step-by-step explanation:

to obtain the first four terms substitute n = 2, 3, 4 into the recursive formula

f(1) = - 5 ← given

f(2) = f(1) + 7 = - 5 + 7 = 2

f(3) = f(2) + 7 = 2 + 7 = 9

f(4) = f(3) + 7 = 9 + 7 = 16

common difference d = 16 - 9 = 9 - 2 = 2 - (- 5) = 7



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If 16 horses eat 5 stacks of hay in 35 days, how many horses can eat 4 stacks of hay in 8 days? Math question
Aleksandr [31]

Answer:

The number of horses that can eat 4 stacks of hay in 8 days = 56 horses

Step-by-step explanation:

The given parameters are;

The time it takes 16 horses to eat 5 stacks = 35 days

Therefore;

The time it takes 16 horses to eat 5/5 stacks (1 stack) = 35 days/5 = 7 days

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The time it takes 16 horses/16 to eat 1 stack of hay = 7 days × 16 = 112 days

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The time it takes 1 horse to eat 1 stack of hay = 112 days

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Therefore, given that (448 days)/(8 days/horse) = 56 horse, we have;

The number of horses that will eat 4 stacks of hay in 8 days = 56 horses.

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HELP?? QUESTION BELOW! :3
aleksandr82 [10.1K]
Hey dear !!

equation of point slope is of form :-..

◆y-y1 =m(x-x1). ----------(*1)

so here m = 2

y1= 9 , x1 =5

put these value in eqn 1

=) y-9 =2(x-5)

option 1 st is correct
4 0
3 years ago
Read 2 more answers
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