If u have a new deck of shuffled cards what is the probability you will choose a black card?

50%

Step-by-step explanation:

There are 4 suits in a deck of cards, hears diamonds clubs and spades

2 are red and 2 are black

This means 1/2 of the cards are black and 1/2 are red

P (black) = black cards / total cards

               = 1/2

               = 50%

step-by-step explanation:

coldest temperature they recorded add me europa2433

europa2433

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)