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3 years ago

5

Help me with this please!

1 answer:

erastova [34]3 years ago

3 0

7 Miles Per Hour Is The Answer.

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10. An arithmetic sequence has this recursive formula. What is the explicit formula?

Mrrafil [7]

Answer:

$a_{n}=45-3n$

Step-by-step explanation:

Method 1:

Arithmetic sequence is in the form

$a_{n} =a_{1} +(n-1)d\\$

d is the common difference, can be found by:

$d=a_{n}-a_{n-1}=-3$

Subtituting the $a_{1}$ and $d$

You get:

$a_{n}=42+(-3)(n-1)=45-3n$

Method 2 (Mathematical induction):

Assume it is in form $a_{n}=45-3n$

Base step: $a_{1} =45-3(1)=42$

Inducive hypophesis: $a_{n}=45-3n$

GIven: $a_{n+1} =a_{n}-3$

$a_{n+1}=45-3n-3=45-3(n+1)$

Proved by mathematical induction

$a_{n}=45-3n$

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3 years ago

Answer The Question On The Picture

taurus [48]

Answer:

a

Step-by-step explanation:

8 0

2 years ago

Find the rate of decay of the function b(x)=4(0.006)^x<br><br> Enter your answer as a percent

yuradex [85]

The answer is .6 percent

6 0

2 years ago

Read 2 more answers

What is the work to 5x=3x-6

Jlenok [28]

5x-3x=-6
2x=-6
x=-3
x equals -3 is the answer.

7 0

3 years ago

16 + 4(x)= -2<br> What is x?

borishaifa [10]

Answer:

x = -9/2

Step-by-step explanation:

16 + 4(x) = -2

4x = -2 - 16

4x = -18

x = -18/4

x = -9/2

4 0

3 years ago