Friday

February 27, 2015

February 27, 2015

Posted by **Aj** on Sunday, September 16, 2012 at 10:09pm.

There are two roads, one has a grade of 20% the other has an elevation of 15 degrees. Which road would be steeper?

- Math -
**bobpursley**, Sunday, September 16, 2012 at 10:16pmHmmm. What is the tangent of 15 degrees? is it greater than .20?

- Math -
**Reiny**, Sunday, September 16, 2012 at 10:16pmThe 20% usually refers to the slope of the road.

But the slope of a line is the tangent of the angle it makes with a horizontal

so if tan Ø = ,2

Ø = 11.3°

so ......

- Math -
**tracey**, Sunday, September 16, 2012 at 11:10pmIf it takes 3.7 seconds for a sound to reach the bottom of the ocean how deep is the water

**Answer this Question**

**Related Questions**

math - A trucker is looking on a map of two roads he could take to get to Nelson...

Math - One road has a grade of 20% and the other has an elevation of 15 degrees...

Math - Two roads intersect at right angles. A water spring is located 65 m from ...

Combinatorics (math) - In a certain country, 40 roads lead out of each city. ...

math - 1. Two roads intersect at an angle of 52.7 degrees, with a field in ...

Poem: The road not taken by Robert Frost - Could you check these answers thanks...

The road not taken last question - for my last question How do you think the ...

trig - a hedgehog wishes to cross a road without being run over. he observes the...

math trigonometry - 1. Two straight roads intersect to form an angle of 75". ...

Math - At one point on a mountain road, the elevation is 1250 meters. Three ...