Mary has six cards whose front sides show the numbers 1,2,3,4,5, and 6. she turns the cards face-down, shuffles the cards until their order is random, then pulls the top two cards off the deck. what is the probability that at least one of those two cards shows a square number?

0.6

Step-by-step explanation:

Among numbers 1, 2, 3, 4, 5 and 6, the square numbers are 1 and 4.

The probability that both of these two cards do not show a square number (both selected cards show numbers 2 or 3 or 5 or 6) is

The probability that at least one of those two cards shows a square number is

the difference between a number and 5 is -2.

step-by-step explanation:

notice that the equation you are given has -2 (negative 2) on the right side, not 2. when you subtract 5 from a number n, you are finding the difference between the number and 5.

the difference between a number and 5 is -2.

1) is right

step-by-step explanation: