al8lumetaChEuse al8lumetaChEuse
  • 02-05-2017
  • Mathematics
contestada

What numbers multiply up to 81 and add to 36?

Respuesta :

wolf1728
wolf1728 wolf1728
  • 02-05-2017
A) x * y = 81
B) x + y = 36
A) x = 81 / y Substituting this into B)
B) 81/y + y = 36 Multiplying both sides by y
81 + y^2 = 36y
y^2 -36y +81 = 0
Solving by quadratic formula
x1 = 33.5885
x2 = 2.4115



Answer Link

Otras preguntas

What is another name for bipolar disorder? a. dr. jekyll and mr. hyde syndrome b. yin and yang illness c. aggressive-depressive illness d. manic-depressive
Do you know when the last bus leaves? Which kind of clause are the words in bold? A. adverb clause B. noun clause C. adjective clause
Jessica has an account with a credit union. Her account earns 2.2% simple interest yearly. Exactly a year and a half ago, she opened her account with $900. How
does "pinto" have an accent mark?
Which system cordinantes the human bodys response to change in its internal and external environment
A boat takes 4 hours to go 20 miles upstream. It can go 32 miles downstream in the same time. Find the rate of the current and the rate of the boat in still wat
A white-blue star is hotter than a red star. T or F
a versatile plant used by peruvians to build things like houses and boats is the
If 3.0 newtons are required to lift a carton 12 meters, how much work is done
what is 1/10 of 2000000