Jessica has 3 cards in a bag, each marked with a letter. The letters are X, Y , and Z. Without looking, she reaches into the bag, pulls out a card, and then puts the card
back in the bag. If Jessica does this 3 times, what is the probability she pulls out the
X card first, then the Y card, and then the Z card?

1/27

Step-by-step explanation:

get one card is 1/3 so you do 1/3x1/3x1/3

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction