Barbara is trying to decide which of her two friends to invite over Saturday night for a sleepover. She writes all six of their names on slips of paper and places them in a hat. Barbara will draw one name and then draw another name. Is this an example of an independent or dependent event? A. This is an example of a dependent event because she draws a name and does not place it back into the hat
B. This is an example of a independent event because she draws a name and does not place it back into the hat.
C. This is not an independent or dependent event because she should let all six of her friends sleep over on Saturday.
D. none of the above

dependant because once she draws one, it narrows down the other draw

Step-by-step explanation:

answer: 25.4 units

step-by-step explanation: radius = 12.7 units

diameter = twice the radius

diameter = 12.7 x 2

= 25.4

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.

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step-by-step explanation: