2 years ago

What is the 100th term in the sequence 5, 9, 13, 17, 21 ?

Mathematics

1 answer:

olga_2 [115]2 years ago

5 0

Answer:

401

Step-by-step explanation:

a=5

d=9-5=4

$a_{n}=a+(n-1)d\\a_{100}=5+(100-1)4=5+400-4=401$

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Answer:

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Step-by-step explanation:

Just do the reverse. 65-11 = 54. 54 / 2 = 27.

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I used a calculator and got <span>4.3649984e+14</span>

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2 years ago

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LekaFEV [45]

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2 years ago

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The figures in the picture are similar to each other find the value of x

alisha [4.7K]

Answer:

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Step-by-step explanation:

Similar figures have sides that are proportional. Setting up a proportion for the sides of the figures will help solve for 'x':

$\frac{small}{large}=\frac{3}{6}=\frac{(x-3)}{(x+1)}$

Cross-multiply: 3(x + 1) = 6(x - 3)

Distribute: 3x + 3 = 6x - 18

Combine like terms: 21 = 3x

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