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NeX [460]
2 years ago
11

What is the nth term rule of the linear sequence below? 13, 7, 1, -5, -11,...

Mathematics
2 answers:
skad [1K]2 years ago
8 0

Answer:

aₙ = a₁ - 6* (n-1)

Step-by-step explanation:

a₁ = 13 = 13 - 6* (1-1)

a₂ = 7 = 13 - 6 * 1 = 13- 6*(2-1)

a₃ = 1 = 7 - 1 = 13 - 6 * 2 = 13 - 6 * (3-1)

........

aₙ = a₁ - 6* (n-1)

check: a₅ = 13 - 6*4 = -11

lubasha [3.4K]2 years ago
6 0

Answer:

7

Step-by-step explanation:

7/9

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Biologists have found that the number of chirps some types of cricket make per minute depends upon the temperature this relation
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Answer: Crickets make 172 chirps/min at 80 degrees Fahrenheit

Step-by-step explanation:

Step 1

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y - y1 = m(x - x1)

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Step 2 : Finding the slope , m

where x1=60

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m= (y2-y1)/ (x2-x1)

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Bringing down the point/slope formula and imputing the known values to find our equation to show the relationship cricket make per minute and  the temperature

y - y1 = m(x - x1)

y - 92= 4(x - 60)

y - 92 = 4x -240

y = 4x - 240 + 92

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Step 3

To find the number of chirps be per minute (y) if the temperature is 80 degrees Fahrenheit( x)

y = 4(80) - 160

y = 320 - 148

y = 172 chirps/min at 80 degrees Fahrenheit

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2 years ago
Rewrite 2 7/9 as a improper fraction
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