al8lumetaChEuse al8lumetaChEuse

02-05-2017
Mathematics

contestada

What numbers multiply up to 81 and add to 36?

Respuesta :

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

Which process increases the surface area of foods prior to chemical digestion?

What is the length of the hypotenuse of this triangle? Round to the nearest tenth.

What is another name for the phylum deuteromycota?

Which part of “The Maori: Genealogies and Origins in New Zealand” best shows that the Maori value freedom?

Beth and Darcy are each driving a car. They start at the same location and will be driving the same route. Beth's car has a gas tank that can hold 15 gallons o

What did the autobiography of Olaudah Equiano reveal about slavery in Caribbean and North America

When researching electronic sources, reliability can be evaluated by A} looking at length and works cited b}overall tone and word choice C}publication dat

HELP!! What was the name of the radical group that called for African Americans to arm themselves and called for a revolution? A) Congress of Racial Equality

__________ can be routinely used to safely screen for abnormal fetal development.

How are love and affection portrayed in memoriam AHH by Alfred, lord Tennyson