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denpristay [2]
2 years ago
11

What is the 20th term of the linear sequence below? 15,7,-1,−9,−17

Mathematics
1 answer:
dybincka [34]2 years ago
7 0

Answer:

a₂₀ = - 137

Step-by-step explanation:

there is a common difference between consecutive terms , that is

7 - 15 = - 9 - (- 1) = - 17 - (- 9) = - 8

This indicates the sequence is arithmetic with nth term

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

here a₁ = 15 and d = - 8 , then

a₂₀ = 15 + (19 × - 8) = 15 + (- 152) = 15 - 152 = - 137

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Answer:

175 feet

Step-by-step explanation:

In 1 full revolution, the bike will travel 42 inches because the diameter of the tire is 21 inches. Any point on the tire will have to go through a whole revolution to be back at the original point which means 21 inches times 2.

So the bike travels 42 inches in 1 revolution then in 50 revolutions it will travel 2100 inches (42 times 50). Now if your convert 2100 inches to feet, you get 175 feet.

8 0
3 years ago
I need help for Brainliest
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6 0
3 years ago
Read 2 more answers
Find the Perimeters of the rectangle whale<br>degonal is 5cm and lenght is 4cm ​
amid [387]

Answer:

14

Step-by-step explanation:

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By the pythagoras theoreom,

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breadth = √9

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3 0
3 years ago
Help me please, ps u don't have to answers all of them
Leni [432]
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Twinks are a social experiment
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Step-by-step explanation:

whT

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