Sunday

March 29, 2015

March 29, 2015

Posted by **nelly** on Sunday, December 2, 2012 at 11:01pm.

- algebra -
**Shawn**, Sunday, December 2, 2012 at 11:55pmThe guy wire, the telephone phone and the ground form a right-angled triangle.

Your measurements are x, x+4, and 20.

To solve for x, you could use the Pythagorean Theorem, a^2+b^2=c^2.

Let a=x

Let b=x+4

Let c=20

First, plug in the values for a, b and c, and then simplify.

From here, solve for x by either factoring, or using the quadratic formula (I'm going to use the quadratic formula).

Now, plug in the values of x into the original formula

The measurement of the telephone pole is x.

My values of x are 12 and -16.

If we substitute the values of x in,

only x=12 makes sense,

because a telephone pole with height -16 is impossible

hope it helps.

**Answer this Question**

**Related Questions**

Math - A telephone pole anchored to the ground by a cable called guy wire at a ...

Math - A guy wire is attached to the top of a pole. The other end of the guy ...

geometry - A guy wire is used to stabilize a utility pole. The wire is fastened ...

math (algebra) - An auto dealer wants to string a wire from the top of a pole to...

Trig - A guy wire attached to the top of an electric pole makes a 70deg angle ...

Trig - A guy wire attached to the top of an electric pole makes a 700 angle with...

trig - guy wire is attached to a pole for support. If the angle of elevation to...

math - Am I missing something here. They way I read this is that the answer is ...

college - a guy wire 27 feet long runs from the top of the pole to a spot on the...

math REALLY need help please - A guy wire is 11.2m long. It supports a vertical ...