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julia-pushkina [17]
3 years ago
11

How do I find the length of AB?

Mathematics
1 answer:
Anit [1.1K]3 years ago
4 0
I assume #3 is 19 because the slope of the line is still the same. 
Hope this is right and it helps! I'm not very sure though. 
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A display of cans in a grocery store consists of 15 rows. There are 45 cans on the bottom , 42 cans on the next row, and so on,
Alchen [17]

Answer:

n = 9

Step-by-step explanation:

20 + 18 + ... + 6 + 4

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a = 20 ; d = -2 ; n = ?

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4 = 20 + (n-1)(-2)

-16 = (n-1)(-2)

---------

n-1 = 8

n = 9

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S(9) = (9/2)(20+4)

S(9) = 4.5*24

S(9) = 108

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Step-by-step explanation:

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3" is the difference in height.
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