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

2.5 miles= how many feet
Which of the following is NOT considered a potential cause of extinction? (A) introduction of a new predator (B) introduction of a new parasite (C) introduction
How do you find perimeter
Why was the Berlin wall built?
2.5 miles= how many feet
ICE CREAM you are planning to make and sell ice creams at a schools sports event. You expect to make and sell 300 ice creams •You buy ice cream in 1 liter tubs
Which term identifies a type of nuclear reaction?(A) fermentation(B) reduction(C) deposition(D) fission
The distance from town A to town B is five miles. C is six miles from B. Which of the following could be the distance from A to C? I 11 II 1 III 7
Which quantity can vary among atoms of the same element?A) mass numberB) atomic numberC) number of protonsD) number of electrons
Why is the UK a developed country?