Saturday

September 20, 2014

September 20, 2014

Posted by **Fiona** on Saturday, October 16, 2010 at 4:00pm.

- trig -
**Alicia**, Saturday, October 16, 2010 at 4:03pm405 I THINK I *'S 15 BY 27 AND GOT 405. NOW THAT IVE HELPED YOU WITH TRIG CAN YOU HELP ME WITH INTRODUCTORY ALGEBRA

- trig -
**Henry**, Sunday, October 17, 2010 at 10:59pm2 rt. triangles are formed. The ver

side(y) is common to both triangles.

x = hor side of smaller triangle = Width of the RD.

(x + 10) = hor side of larger triangle

tan27 = y/x,

Eq1. y = x*tan27.

tan15 = y / (x + 10),

Eq2. y = (10 + x)tan15.

Substitute Eq1 for y in Eq2:

x*tan27 = (x + 10)*tan15,

x*tan27 = x*tan15 + 10*tan15,

x*tan27 - x*tan15 = 10*tan15,

0.5095x - 0.2679x = 2.679,

0.2416x = 2.679,

X = 2.679 / 0.2416 = 11.1 m. = Width of RD.

**Answer this Question**

**Related Questions**

Pre-Calculus-Trig - A straight road slopes at an angle of 10 degrees with the ...

science physics - A chicken decides to cross a road. The road is perfectly ...

trig - A road has a 10% grade (slope). To the nearest degree what is the angle ...

Trig - A straight road slopes upward 14 degrees from the horizontal. A vertical ...

trig - A road runs from the base of a mountain. From two points 235 meters apart...

trig - A road runs from the base of a mountain. From two points 235 meters apart...

trig - A road runs from the base of a mountain. From two points 235 meters apart...

trig - On an inclined road, which makes an angle of 25 degrees with the ...

maths - 1 ) Lamp posts,dust bins and benches are paced at intervals of 70 m ,56 ...

calculus - Damon help again :) (last one I promise) why is X along the road ...