lexinerd
lexinerd
22-06-2014
Mathematics
contestada
Solve for x. 10x^2=29x-21 does anyone know this
Respuesta :
konrad509
konrad509
22-06-2014
[tex] 10x^2=29x-21 \\ 10x^2-29x+21=0\\ \Delta=(-29)^2-4\cdot10\cdot21=841-840=1\\ \sqrt{\Delta}=\sqrt1=1\\ x_1=\frac{-(-29)-1}{2\cdot10}=\frac{28}{20}=\frac{7}{5}\\ x_2=\frac{-(-29)+1}{2\cdot10}=\frac{30}{20}=\frac{3}{2}\\[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 32+ )
Otras preguntas
1If you type Mickey -Mouse into a search engine, what results will you get? A Sites that contain the word Mouse but not the word Mickey B. Sites that contain th
!!!!!!!!!!!!!skakdkdkmd
Excuses excuses excuses essay
Which picture represents the boundary that will cause subduction to occur?
Use grid paper to find the median of the data. 9, 7, 2, 4, 3, 5,9,6,8,0,3, 8
Why did Odysseus have to rescue his men from the lotus-eaters
Complete the sentence with the correct form of the superlative. La voiture noire est (the best) des voitures.
What is the product of an oxidation reaction? Ozone Oxygen Oxide
Use grid paper to find the median of the data. 16, 24, 13, 36, 22, 26, 22, 28, 25 will give Briainelst
What is the value of the expression shown? 10 - 16:2[tex]10 - 16 \div 2[/tex]
