CPhill

(3, 4)  .......these are the translation coordinates.......

17 + 2.50h  = 11 + 3.75h    where  h are the hours we're looking for

Subtract 11, 2.50h  from both sides

6 = 1.25h      divide both sides by 1.25

h = 4.8 hrs

Here's the regression line equation I calculated using this site :  http://www.alcula.com/calculators/statistics/linear-regression/

y=0.076558900322531x-1.673173091691

[Check my input....I think I entered all the values correctly...!!!  ]

Hope that helps.....

What if it's the Rock of Gilbraltar.......????

You think we can find a glass large enough......????

What you describe is impossible.......see the following pic to see why...... [ the dimensions are shown ]

The short side of the rectangle would be opposite the 40°  angle

The diagonal makes a 40° angle with the long side of the rectangle

And I assume that you want the distance and bearing from A to D????....if so, look at the following pic :

Using trig, D is located at  an angle =

tan^-1 (-138.829 / -78.298) + 180°  =  about 240.577°  from A

This is a bearing of  180 + (270- 240.577) = about 209. 423°

And the distance, as shown, is about 159.387 km from A

5/7  =  40/56

7/8 =  49/56

Do you see the answer???

0.75   = 75%

So  75%  of 20   = 15   correct

< x, y >   = < 35cos(-55), 35sin(-55) >  =  < 20.08 , -28.67 >

7a + 10 = 2a      subtract 7a from both sides

10  = - 5a      divide both sides by -5

-2  = a