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gregori [183]
3 years ago
8

Please help :) I’m struggling

Mathematics
1 answer:
aleksley [76]3 years ago
6 0

Answer:

an = -1.3n -2.4

Step-by-step explanation:

The formula for an arithmetic sequence is

an = a1 +d (n-1)

where a1 is the first term and d is  the common difference

an = -3.7 - 1.3(n-1)

Distribute

an = -3.7 -1.3n +1.3

an = -2.4 - 1.3n

an = -1.3n -2.4

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Use formula A²+B²=C²
120²+62²=C²
14,400+3,844=C²
14,400+3,844=18,244
√18,244=135.07035...

135.07035...≈135.1
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What is 30% of $1,200 dollars
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3 years ago
an item that was selling for $1,102 is reduced to $806 to the nearest whole what is the percentage decrease
lakkis [162]

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Decide whether each number is written in standard notation or scientific notation.
VARVARA [1.3K]

The answers are as follows:

3000- standard notation

4.2*10 raised to 4 - scientific notation

1.05 × 10 raised to power –7  - scientific notation

0.0013 - standard notation

6,500,000 - standard notation

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Concept: Standard notation is a way of writing a number so it is easier to read. It is often used for very large or very small numbers.

Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10.

In the given questions,

3000- standard notation

4.2*10 raised to 4 - scientific notation

1.05 × 10 raised to power –7  - scientific notation

0.0013 - standard notation

6,500,000 - standard notation

6.2 × 10 raised to power 19 - scientific notation

For more information, visit brainly.com/question/907978

#SPJ10

4 0
2 years ago
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