(1 pt) Which strategy can be used to solve this problem?
The surface area of a cube is 24 square inches.
What is the perimeter of one of the faces of the cube?
A.
Guess and test.
Guess that the perimeter of one of the faces is 20 inches. This means that each side of a face is 5 cm long. The area of each face would then be 25 square inches. Double this number to get the surface area. This number is greater than 24 square inches. Guess another number, and test it.
B.
Translate into number sentences.
Calculate the area of one of the faces of the cube.
24 = 6a, so 4 = a
Calculate the length of each side.
s × s = 4, so s = 2.
Calculate the perimeter.
P = 4 × 2
C.
Work backward.
Start with the surface area of 24. Divide by 4 to figure out the area of each face. Then multiply that answer by 4 to get the perimeter.

You are in a room of 22 people (including yourself). each of you has their own deck of 52 cards — assume each deck is well-shuffled, and can be assumed to be fair and independent of each other.1. each you draws the top card of your deck.what is the probability that at least one other person has drawn the same card as you? 2. let x be the number of people who drew a card that was also drawn by at least one other person. for example, if you all drew the same card, x=22, but if you all drew different cards, x=0. what is the expected value of x? 3. consider the same situation as the last question, but this time with 29 people: all 29 of you are in a room with your own decks of cards, and you draw one of them.what is the probability that at least one person draws the ace of spades? 4. let x be the number of the types of card drawn. for example, if everyone draws the same card, x=1, but if everyone draws a different card, x=29. what is the expected value of x?