Question 4 of 10 Find the solutions to the equation below.
Check all that apply.
30x2 - 28x+6=0
A. x=
4
B. x =
c. x=
D. x=1
E. x =
Ex=2

Ihonestly don’t understand this at all

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

Se tiene en una caja de canicas 10, 4 blancas y 6 negras ¿cual es la probabilidad que en 2 extracciones con reemplazo sean blancas? ¿cual es la probalidad que en 2 extracciones sin reemplazo sean negras?