elizabethRODASS
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

fran has 7 sheets of paper for coloring projects if she only uses one third of a sheet of paper per drawing how many drawings can she make?
One student did an experiment with sea water. The steps of the experiment are shown below. Heat 0.5 liters of sea water in a beaker. Observe the sea water boil
Most metamorphic processes take place A. several hundred kilometers below Earth’s surface. B. a few kilometers below Earth’s surface. C. just below Earth’s su
When did India and Pakistan gain independence? A. after World War I B. after World War II C. after the Cold War D. When did India and Pakistan gain independence
Simplify -(6m - 9n) =
How do historical linguists trace a legend back to its roots?
An 8- pound bag of apples costs $17.50.What is the unit price?
Who were the myrmidon
What is the value of this expression (11-t) x[(15+t)/t]
what are two intergers that are also whole numbers