3 years ago

Read the statement shown below.

Mathematics

1 answer:

wolverine [178]3 years ago

8 0

If two lines do intersect, then the two lines are perpendicular

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

kifflom [539]

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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2 years ago

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stepladder [879]

Answer:

21 1/3

Step-by-step explanation:

20 ÷ 15/16=

20/1 ÷ 15/16=

20/1*16/15=

4/1*16/3=

64/3=

21 1/3

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2 years ago

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yuradex [85]

Answer:

A≈16.65

Step-by-step explanation:

h Height 3

AB Base area 4

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