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Elan Coil [88]
4 years ago
12

Explain how an estimate helps you to place the decimal point when multiplying 3.9x5.3

Mathematics
1 answer:
Pepsi [2]4 years ago
5 0


When you estimate, you round the decimal up.3.9 rounds up to 4 ,5.3 rounds up to 5.

4 times 5 equals 20.The actual answer is 20.67.

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Answer:

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Step-by-step explanation:

The coordinates of origin are (0,0,0)

We are given a point R(9,7,80

The distance formula:

\sqrt{(y_1 -x_1)^2 + (y_2 -x_2)^2 + (y_3 -x_3)^2}, where (x_1, x_2, x_3) are coordinates of one point and  (y_1, y_2, y_3) are coordinates of other point.

Putting the values as:

y_1 = 9, y_2 = 7, y_3 = 8\\x_1 =0, x_2 = 0, x_3 = 0

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Answer:

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