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

where does the shadow of the shuttle in space form?

Where did the Greeks believe that most gods lived

simplify (1/x) + (1/(x+h)

What number is equivalent to 13/2

The statement, "right angles measure 90 degrees," is an example of: A postulate A definition A theorem A conjecture

the graph below shows the distribution of students grades on their last math test. Based on the Empirical rule, what percent of students made.. *btwn 80 n 85 o

A curved section of roadway is in the shape of a circular arc of 410-m radius. The curved section is horizontal, not banked. The coefficient of friction for tir

india takes the two hour train ride from minneapolis to chicago every dummer to visit her grandparents. The train traveled 44 7/16 (thats a mixed number) mile

Earth is a close approximation of a natural closed system. What are some ways that living in a closed system affects each of us.

The statement, "right angles measure 90 degrees," is an example of: A postulate A definition A theorem A conjecture