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 ( 46+ )
Otras preguntas
Evaluate 16 x 32 x 53
How are the foundations of Judaism and Christianity alike?
Sandra earns $22,000 per year. Her earnings put her in the 20% tax rate. What is her tax owed?
P (purple) and p (white) are the dominant and recessive alleles for flower color in peas. Similarly, A (axial) and a (terminal) are the dominant and recessive a
4. Which of the following scenarios would cause a sound to stop being produced?A. A molecule moves in the same direction as a wave.B. The vibration of the point
Is as i lay dying what is anse most preoccupied with
Are spheres that have the same length radii are called concentric?
Is the set of points w(4, 4), x(6, 2), y(-8, 16) are collinear.
What is the standard form equation of the line shown below
How would you tell a group of people to prepare for a hurricane?
