elizabethRODASS elizabethRODASS

03-03-2015
Mathematics

contestada

(20-r)^1/2=r what is the square root of this equation

Respuesta :

jklash12 jklash12

03-03-2015

20-r=r^2
r^2+r-20=0
(r+5)(r-4)=0
r=4,-5

Answer Link

Otras preguntas

why do historians need archaeologists and anthropologists to study prehistory

What word should you avoid when correcting a child?

Which approach best defines how writers of historical fiction try to appeal to readers? A.by providing an accurate, fact-based picture of history B.by alterin

if you solve an equation by graphing each side as a separate line, which of the following corresponds to the solution of the equation?

During the Hoover administration, several economic warning signs appeared. Can you name them?

the word "Semite" refers to a large language/ethics grouping that includes which two Middle Eastern people among its members?

After air is taken in through the mouth or nose, it travels through the _____. bronchi, trachea, and the lungs pharynx, trachea, and then the lungs diaphragm, a

. A pattern of being late for work or for appointments is usually

A waterfall in a park is located 6 miles east and 3 miles north of the visitors center. There is a picnic site 1 mile east and 2 miles north of the visitors cen

How can I use prokaryote in a sentence??????