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patriot [66]
3 years ago
5

Given the sequence rn defined recursively below, find r3. r1rn=2=−rn−1+n−2

Mathematics
1 answer:
kifflom [539]3 years ago
7 0

Answer:

r_3=3

Step-by-step explanation:

Given:

r_1=2\\r_n=-r_{n-1}+n-2

We want to find the value of r_3 .

\\r_2=-r_{2-1}+2-2\\r_2=-r_1\\r_2=-2\\\\r_3=-r_{3-1}+3-2\\r_3=-r_{2}+1\\r_3=-(-2)+1\\r_3=2+1\\r_3=3

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Answer: C

Explanation:

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8 0
3 years ago
Which angle pairs are supplementary? Check all that<br> apply.
Basile [38]

Answer:

The correct answers are B, C, and E.

B. < 4 and < 3

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E. < 3 and < 6

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8 0
3 years ago
In circle N, KL ≅ ML. What is the measure of ?
pentagon [3]
This is the concept of geometry, for us to get the value of JM we will requires to get the value of x first;
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3 0
3 years ago
Read 2 more answers
Tony is mailing packages. Each small package costs him $2.80 to send. Each large package costs him $3.60. How much will it cost
Natasha_Volkova [10]

Answer:

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Step-by-step explanation:

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3 small packages will cost him 3 x $2.80 = $8.4

 

Each large package costs him $3.60

7 large packages will cost 7 x $3.60 = $25.2

 

Cost to  send 3 small packages and 7 large packages = $8.4 + $25.2

= $33.6

6 0
3 years ago
Hi I do not need the help but can I have it so here it is “There are 12 girls and 18 boys in a class. What is the largest number
PolarNik [594]
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2 years ago
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