10 cards are numbered from 1 to 10 draws out a card replaces it and then draws another card what is the probability that both cards will be numbers greater that 5?

1/4

Step-by-step explanation:

So there are 10 total cards, and there are 5 cards that have numbers greater than 5.  

The chances of getting a card greater than 5 is 5/10 = 1/2

Since the card is being replaced, the chances of it happening the second time are the same.

To get the probability of both events happening, multiply the two probabilities.  1/2 * 1/2 = 1/4

So there is a 1/4 chance that both cards are over 5.

the mean and mad

step-by-step explanation:

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

ask for details followreport by buttfacelily 2 minutes ago

answers

rauschg

rauschg · hand

know the answer? add it here!

step-by-step explanation: