natalieahebert1
natalieahebert1
21-02-2015
Mathematics
contestada
solve for a: a(a-3) =100
Respuesta :
konrad509
konrad509
21-02-2015
[tex] a(a-3) =100\\ a^2-3a-100=0\\ \Delta=(-3)^2-4\cdot1\cdot(-100)=9+400=409\\ \sqrt{\Delta}=\sqr{409}\\ a_1=\dfrac{-(-3)-\sqrt{409}}{2\cdot1}=\dfrac{3-\sqrt{409}}{2}\\ a_2=\dfrac{-(-3)+\sqrt{409}}{2\cdot1}=\dfrac{3+\sqrt{409}}{2}[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 81+ )
Otras preguntas
The Great Foods Warehouse contains 9435 pounds of watermelons. There are 6555.569 pounds of watermelons in the Tasty Food Warehouse. How many more pounds does t
An interest group that gives money collected from members to political candidates or parties is called a ________________ __________________ ___________________
Um navio esta situado exatamente a 10 milhas a leste de um ponto A. Um observador, situado exatamente a sul do navio, ve o ponto A sob um angulo de 40°. Qual a
Write five sentences in Spanish using "-ir" verbs. Only choose from these regular verbs to make your sentences: abrir, asistir, decidir, descubrir, escribir, o
20 POINTS TO WHOEVER ANSWERS THIS FIRST Translate the word phrase into a math expression 12 meters longer than his throw A.T / 12 B. 12 x T C. T - 12 D. T + 12
Rutherford and Soddy's research involved: 1)Deflection of alpha particles caused by positive nucleus 2)Defining the components of atomic nuclei 3)The theory tha
(-6,-10) , y axis. (-11,3),x axis. (8,2) ,x axis
How many electoral votes does Texas have?
Round 103.468 to the nearest liter
THIS IS SCIENCE Approximately how many elements are there that combine chemically in a great number of ways to produce compounds? A.25 B.50 C.75 D.100
