A rectangular mat has a length of 12 in. and a width of 4 in. Drawn on the mat are three circles. Each circle has a radius of 2 in. Some friends play a game throwing darts onto the mat to see who can land a dart in one of the circles. Assuming that a dart always lands on the mat, what is the probability that a dart thrown at random will land inside one of the circles? Use 3.14 to estimate Pi. Enter your answer, as a decimal rounded to the nearest hundredth, in the box. P(landing in a circle) = The figure shows three circles side by side inside a rectangle. The length of the rectangle is labeled 12 inches, and the width is labeled 4 inches. The radius of each circle is labeled 2 inches.Plz HELP!!!!!!!!!

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general 10 months ago 6850

When evaluating a report, Lance saw that 58% of the respondents to a survey think that the school year should be lengthened, while 42% think it should remain the same. The margin of error of the survey was ±10%. Which statement is true?A.The population proportion of those who think the school year should be lengthened is definitely greater than the proportion of those who think it should remain the same.B.The population proportion of those who think the school year should be lengthened is definitely less than the proportion of those who think it should remain the same.C.The population proportion of those who think the school year should be lengthened is definitely equal to the proportion of those who think it should remain the same.D.The population proportion of those who think the school year should be lengthened may or may not be less than the proportion of those who think it should remain the same.

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general 10 months ago 1504

Clive finds that the line of best fit for the data has the equation y = 0.5x + 1.5. Which statement best explains how removing the point (15, 7) would affect the slope of the line of best fit? A) The slope of the line of best fit would decrease because the point lies below the original line of best fit. B) The slope of the line of best fit would decrease because the point lies above the original line of best fit. C) The slope of the line of best fit would increase because the point lies below the original line of best fit. D) The slope of the line of best fit would increase because the point lies above the original line of best fit.

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general 10 months ago 6098

Ellie was constructing an isosceles right triangle. He is provided with the measure of the base of the triangle. His first step was to use a ruler to draw the base of the triangle, and his next step was to use a protractor to draw one of the base angles. What should his next step be?A.)Use a protractor to construct a 45° base angle.B.)Use a ruler to draw the first leg of the triangle.C.)Use a ruler to draw the second leg of the triangle.D.)Use a protractor to draw a right angle.

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general 10 months ago 6648

The manager of a warehouse would like to know how many errors are made when a product’s serial number is read by a bar-code reader. Six samples are collected of the number of scanning errors: 36, 14, 21, 39, 11, and 2 errors, per 1,000 scans each.1A.] What is the mean and standard deviation for these six samples?2A.] What number of errors is made by all scans, based on these six samples?Just to be sure, the manager has six more samples taken: 33, 45, 34, 17, 1, and 29 errors, per 1,000 scans each1B.] How do the mean and standard deviation change, based on all 12 samples?2B.] How reasonable is it to expect that the small sample represents larger samples?

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general 10 months ago 3190

The marketing department of a sports supply store wants to estimate the percentage of adults in the town who belong to a gym. Which statement describes a method that will help the marketing department accurately estimate this percentage? Take a random sample of the store’s adult customers, and ask what percentage of their friends belong to a gym. Calculate the mean of the responses. Select the store’s first 20 customers every day for one week, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.” Take a random sample of adults at the local park, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.” Take a random sample of adults in the town, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.” PLZ answer ASAP

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general 10 months ago 5442