6 preguntas sobre ecuaciones de segundo gradoo lo necesiitoo urgennttee 1. En encuentre las raíces de la ecuación para los casos mostrados:

a)

2 − 25 = 0

b)

2 − 3 = 0

2. Carlos, excelente matemático, se le plantea resolver la siguiente ecuación

cuadrática:

2

2 − 8 + 6 = 0 ¿Qué valores de “” encontró?.

3. Si 1 2 Son las raíces de la ecuación mostrada:

3

2 − 9 + 45 = 0

Calcule: =

1. 2

1+ 2

4. La suma de los cuadrados de dos números naturales consecutivos es 113.

Aplicando ecuaciones de 2do grado encuentre el menor número.

5. Las raíces de una ecuación de 2do grado son:

1 = 4 − √2

2 = 4 + √2

Encuentre la ecuación de 2do grado que genera dichas raíces.

6. Un cuerpo es lanzado en movimiento parabólico y la ecuación que

gobierna dicho movimiento es:

= 30 − 5

2

, donde “” es la altura en metros (m) y “” es el tiempo en

segundos(s). ¿Al cabo de qué tiempo máximo = 25 m?

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i