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1 year ago

the sum of the 10th and 11th terms of an arithmetic sequence is 65 what is the sum of its first 20th terms

Mathematics

1 answer:

Dmitriy789 [7]1 year ago

6 0

Answer:

this is the answer

Step-by-step explanation:

a 65

b 650

c 52

d 3

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2 years ago

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Answer:

Part 1) The length of the new rectangle is $87.5\ ft$

Part 2) The area of the new rectangle is $4,375\ ft^{2}$

Step-by-step explanation:

we know that

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step 1

Find the length of the new rectangle

Let

L-----> the length of the new rectangle

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2 years ago

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alukav5142 [94]

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Step-by-step explanation:

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2 years ago

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An artist is constructing a piece of art in the shape of rectangle. The artist wants to use string to tightly tie each vertex of

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Answer:

65.8 ft

Step-by-step explanation:

The number of strings required to tie each vertex to the other three will be ...

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the sum of the 10th and 11th terms of an arithmetic sequence is 65 what is the sum of its first 20th terms​

the sum of the 10th and 11th terms of an arithmetic sequence is 65 what is the sum of its first 20th terms