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3 years ago

13

Suppose a railroad rail is 3 kilometers and it expands on a hot day by 20 centimeters in length. Approximately how many meters w

ould the center of the rail rise above the ground?
I aim having difficulty completing this question. Please help

1 answer:

siniylev [52]3 years ago

4 0

Answer:

sadfasdfasdfasdf

Step-by-step explanation:

asdfasdfasdfsadfsadfsadfsdfsdfsaf

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Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (–

polet [3.4K]

The expression (21 + 5i) + (-1 + i) demonstrates the commutative property of addition for (-1 + i) + (21 + 5i)

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more number and variables.

Given the expression:

(-1 + i) + (21 + 5i)

Using the commutative property of addition, we get:

(21 + 5i) + (-1 + i)

The expression (21 + 5i) + (-1 + i) demonstrates the commutative property of addition for (-1 + i) + (21 + 5i)

Find out more on equation at: brainly.com/question/2972832

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2 years ago

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How many times as great is the diameter of a pinhead as the diameter of a cloud-water droplet

Ulleksa [173]

Given:

The diameter of cloud-water droplet is

$10^{-5}$

The diameter of pinhead is 0.001.

Explanation:

Divide the dimater of cloud-water droplet by dimater of pinhead to determine the times as great is the diameter of a pinhead as the diameter of a cloud-water droplet .

$\begin{gathered} a=\frac{0.001}{10^{-5}} \\ =0.001\cdot10^5 \\ =100 \end{gathered}$

So diameter of a pin-head is 100 times the diameter of water-droplet.

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1 year ago

Which digit could be the ten millions place that is less than 55,000,000 but greater than 25,000,000

Keith_Richards [23]

The answer is B hope this helped

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3 years ago

Answer pls tysm<br> plssssssssssssssssssssssssss

Ghella [55]

Answer:

You can not see the picture

Step-by-step explanation:

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2 years ago

#13 w is the solution of the equation. 3 = b + 3

Ulleksa [173]

3-3=b+3-3
solve each side
0=b

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2 years ago

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