**Weegy:** Compute square root
Returns the square root of x.
In C++, this function is overloaded in and (see complex sqrt and valarray sqrt).
Parameters
x
Floating point value.
If the argument is negative, a domain error occurs, [ [ setting the global variable errno to the value EDOM.
Return Value
Square root of x.
Portability
In C, only the double version of this function exists with this name.
] ]

**User:** What is the equation of a circle whose center is at the origin and whose radius is 16?

**Weegy:** x2 + y2 = r2, where r is the radius.

**User:** What is the midpoint of the line segment whose endpoints are (-8, 12) and (-13, -2)?

**Weegy:** x + 3 = -5; x = -8

(More)8

{3, 5, sqrt(34)} could be the sides of a right triangle.

3^2 + 5^2 = 9 + 25 = 34

(sqrt 34)^2 = 34

3^2 + 5^2 = (sqrt 34)^2 which shows its a right triangle.

Added 7/8/2014 9:18:49 AM

This answer has been confirmed as correct and helpful.

Confirmed by

yumdrea [7/8/2014 1:25:54 PM]

8

The midpoint of the line segment whose endpoints are (-8, 12) and (-13, -2) is (-21/2, 5)

Added 7/8/2014 9:19:34 AM

This answer has been confirmed as correct and helpful.

Confirmed by

jeifunk [7/8/2014 9:24:34 AM]