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2 years ago

EXPERTS/ACE/GENIUSES

Mathematics

2 answers:

Illusion [34]2 years ago

8 0

Hi there!
I believe the dilated number is 3.
If you look at A figure... there a 2 squares and 4 1/4ths which makes an entire square. Once that is added you have three.

Happy to help!
~Brooke❤️

shusha [124]2 years ago

6 0

3 is the scale factor you would use to dilate Figure A to Figure B.

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How many 4-digit numbers are multiples of at least one of these two numbers: 2; 5.

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What is completely factored form of x^4+8x^2-9

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PLZ HELP THIS IS DUE TOMMOROW AND I AM STUCK if the perimeter of a rectangle is 78 cm, and its length equals 3+2(width) what is

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since perimeter is the total of the length plus length plus width plus width:

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Please please please help!! i’ll mark the brainliest and give 15 points!!!!

Korolek [52]

9514 1404 393

Answer:

-108

Step-by-step explanation:

About the easiest way to do this for small values of n is to compute each of the terms using the given recurrence relation.

$a_1=4\\\\a_2=-3a_1=-3(4)=-12\\\\a_3=-3a_2=-3(-12)=36\\\\a_4=-3a_3=-3(36)=-108\\\\\boxed{a_4=-108}$

_____

<em>Alternate solution</em>

You recognize that the recurrence relation describes a geometric sequence with a first term of 4 and a common ratio of -3. The n-th term of a geometric sequence is ...

$a_n=a_1\cdot r^{n-1} \qquad\text{for first term $a_1$ and common ratio $r$}$

Then the 4th term will be ...

$a_4=4\cdot(-3)^{4-1}=4\cdot(-27)=-108$

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2 years ago