ashleynicolee ashleynicolee

17-10-2014
Mathematics

contestada

the length of a line segment is [tex] \sqrt{20} [/tex] and its endpoints are (5,1) and (x,-3). What is the solution set for x?

Respuesta :

17-10-2014

To solve the length of a line, use the distance formula (which is also the pythagorean theorem). In this case, it's (5-x)^2 + (1+3)^2 = 20.

Simplify that to (5-x)^2 + 16 = 20,
so (5-x)^2 = 4
So 5-x = 2 or -2,
so x = 3 or 7.

Answer Link

Otras preguntas

a store mixes red fescue worth $12 per pound and chewings fescue worth $16 per pound. The mixture is to sell for $15 per pound. Find out how much of each should

The two epics written by Homer the Illiad and the Odyssey are considered to be what's known as Primary epics. The third book written by Virgil, The Aeneid , is

The coordinates of the vertices of ANGLE RST are R(-3,5), and S(4,5), and T(4,-2). Find the side lengths to the nearest hundredth and the angle measures to the

Does the green tea have coffein ???

The two epics written by Homer the Illiad and the Odyssey are considered to be what's known as Primary epics. The third book written by Virgil, The Aeneid , is

How many parrallel lines does a triangle,square,trapezoid,pentagon

The two epics written by Homer the Illiad and the Odyssey are considered to be what's known as Primary epics. The third book written by Virgil, The Aeneid , is

Who knows the book Rose Blanche

Does the green tea have coffein ???

Who knows the book Rose Blanche