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yuradex [85]
3 years ago
11

Please help me and explain please

Mathematics
1 answer:
Lyrx [107]3 years ago
4 0

Answer:

?

Step-by-step explanation:

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⎧
MrRissso [65]

Answer:

f(n)=-5-3n

Step-by-step explanation:

Given the recursive formula of a sequence

f(1)=−8

f(n)=f(n−1)−3

We are to determine an explicit formula for the sequence.

f(2)=f(2-1)-3

=f(1)-3

=-8-3

f(2)=-11

f(3)=f(3-1)-3

=f(2)-3

=-11-3

f(3)=-14

We write the first few terms of the sequence.

-8, -11, -14, ...

This is an arithmetic sequence where the:

First term, a= -8

Common difference, d=-11-(-8)=-11+8

d=-3

The nth term of an arithmetic sequence is determined using the formula:

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

Substituting the derived values, we have:

T(n)=-8-3(n-1)

=-8-3n+3

T(n)=-5-3n

Therefore, the explicit formula for f(n) can be written as:

f(n)=-5-3n

7 0
2 years ago
Find the exact value by using a half-angle identity. (6 points)
Elenna [48]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
Miguel saved $355 in 5 weeks. He saved equal amounts of money each week. How much money would he save in 15.5 weeks ?
Andrei [34K]

Answer:

A

Step-by-step explanation:

$355:5

$355 divided by 5=$71

5 divided by 5=1

$71 per week

$71x15.5=$1,100.50

$1,100.50 in 15.5 weeks

7 0
2 years ago
Combine the like terms to create an equivalent expression -3x-6+(-1)
Molodets [167]
The answer on a app i have says it’s -3x - 7 so the person above me is right
7 0
3 years ago
How do I solve this 4x-2y=8 y=3/2x-2
Tanya [424]

Answer:

y=1 and x= .5

Step-by-step explanation:

distribute

the x has to be solved

they when got the answer

input the answer you got for x into the y and subtract and divide

the answer is one for x

4 0
3 years ago
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