Answers: 1
![\bf 9x^2+2=10x\implies 9x^2-10x+2=0 \\\\[-0.35em] ~\dotfill\\\\ \qquad \qquad \qquad \textit{discriminant of a quadratic} \\\\\\ \stackrel{\stackrel{a}{\downarrow }}{9}x^2\stackrel{\stackrel{b}{\downarrow }}{-10}x\stackrel{\stackrel{c}{\downarrow }}{+2}=0 ~~~~~~~~ \stackrel{discriminant}{b^2-4ac}= \begin{cases} 0&\textit{one solution}\\ positive&\textit{two solutions}~~\checkmark\\ negative&\textit{no solution} \end{cases} \\\\\\ (-10)^2-4(9)(2)\implies 100-72\implies 28](/tpl/images/0012/8181/767d3.png)
Another question on Mathematics
Mathematics, 21.06.2019 17:00
Tiffany drives 285,120 feet before lunch and 628,320 feet after lunch. about how many kilometers does she drive all together
Answers: 1
Mathematics, 21.06.2019 19:30
Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8
Answers: 2
Mathematics, 21.06.2019 23:00
George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2
Answers: 1
Mathematics, 21.06.2019 23:30
Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3
Answers: 1
You know the right answer?
What is the discriminant of 9х2 + 2 = 10x?...
Questions
Social Studies, 03.08.2019 15:00
Spanish, 03.08.2019 15:00
Spanish, 03.08.2019 15:00
Mathematics, 03.08.2019 15:00
Mathematics, 03.08.2019 15:00
Arts, 03.08.2019 15:00
Arts, 03.08.2019 15:00
