In a poll of registered voters nationwide, 43% of those polled blamed oil companies the most for the recent increase in gasoline prices. the margin of error for this poll is 2.4%. what does this represent? a. the sample proportion likely falls within 2.4% of the population proportion. b. the sampling distribution of the sample proportion has a standard deviation equal to 0.024. c. the sample proportion likely falls within 2.4% of the population proportion, which is between 0.406 and 0.454. d. all of these are representative. e. the population proportion is between 0.406 and 0.454.

395.84

step-by-step explanation:

2πrh+2πr²

2 (pie)(radius)(height)+2(pie)(radius)^2

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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answers

rauschg

rauschg · hand

know the answer? add it here!

step-by-step explanation:

i use my brain for prombles like this maybe you could try it

step-by-step explanation:

if you was gonna solve for a, a is a   < -12