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Reika [66]
3 years ago
14

Estimate then add to find the combined length of the four highways shown in the table.is your answer resonable? Explain. Interst

ate 1-90 length 3,102 , 1-10 length 2,460, 1-70 lenght 2,153, 1-80 length 2,899
Mathematics
1 answer:
Olegator [25]3 years ago
7 0
To estimate, round 3102 to 3100
round 1-10 to 2500
1-70 to 2100 
1-80 to 2900
2900+2100+2500+3100=10600mi
Yes it is reasonable because you add and subtract numbers when estimating, however it is not exact
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Using the slope concept, it is found that the angle between the ladder and the floor will be of 33.69º.

<h3>What is a slope?</h3>

The slope is given by the <u>vertical change divided by the horizontal change</u>, and it's also the tangent of the angle of depression.

In this problem, we have that:

  • The angle is of 45º.
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Hence:

tan(45º) = h/3.

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h = 3 m.

If the ladder slides 1 m down, the height will be of 2m, hence the angle will be given as follows:

\tan{\theta} = \frac{2}{3}

\theta = \arctan{\left(\frac{2}{3}\right)}

\theta = 33.69^\circ

More can be learned about the slope concept at brainly.com/question/18090623

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