4 years ago

Convert the metric unit of length using unit ratios or substitution. 6330 m = _______ km

1 answer:

8 0

We have to multiply by the next conversion factor: (1 Km/1000 m).

6330 m=6330 m * (1 Km /1000 m)=(6330 m * Km) / 1000 m=6.33 Km.

Solution: 6330 m=6.33 Km

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A building engineer analyzes a concrete column with a circular cross section. The circumference of the column is 18 \pi18π18, pi

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The area of the cross section of the column is $18 \pi \ m^2$

Explanation:

Given that a building engineer analyzes a concrete column with a circular cross section.

Also, given that the circumference of the column is $18 \pi$ meters.

We need to determine the area of the cross section of the column.

The area of the cross section of the column can be determined using the formula,

$Area= \pi r^2$

First, we shall determine the value of the radius r.

Since, given that circumference is $18 \pi$ meters.

We have,

$2 \pi r=18 \pi$

$r=9$

Thus, the radius is $r=9$

Now, substituting the value $r=9$ in the formula $Area= \pi r^2$ , we get,

$Area = \pi (9)^2$

$Area = 81 \pi$

Thus, the area of the cross section of the column is $18 \pi \ m^2$

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Answer:

35+2.5v = 70

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Step-by-step explanation:

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3 years ago

In the United States, 15,000,000 households use private wells for their water supply. Write this number in scientific notation.

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Answer:

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A store is instructed by corporate headquarters to put a markup of 43% on all items. An item costing $7 is displayed by the st

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Answer:

The correct price is 10.01

Step-by-step explanation:

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One and one-fifth mile

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