3 years ago

Identify the examples as primary sources or secondary sources.

Mathematics

1 answer:

algol133 years ago

5 0

Answer:

Primary : letters, artifacts, contracts

Secondary : documentaries, encyclopedias, biographies

Step-by-step explanation:

(I'm not too sure about contracts, so you might want to check yourself for that one)

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Mars2501 [29]

Answer:

4.2 or 4

Step-by-step explanation:

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or 4.2

or 4

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

1. The word is signals the equal sign.

The difference of three times a number and 20 = 13

2. The word difference signals subtraction.

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Kiyo used to wire fencing to form a border around a circular region in his backyard. If the radius of the circular region was 5

kakasveta [241]

Answer:

The total length of the border is $31.4\ yd$

Step-by-step explanation:

we know that

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we have

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assume

$\pi=3.14$

substitute

$C=2(3.14)(5)=31.4\ yd$

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