Which pair of expressions below is equivalent?
A. x+y+x+y and 2(x + y)
B. 5(2x β 3y) and 10x...
Mathematics, 23.03.2021 19:00 imlexi12393
Which pair of expressions below is equivalent?
A. x+y+x+y and 2(x + y)
B. 5(2x β 3y) and 10x β 3y
C. 4x - 5y and 5y - 4x
D. 9x + 2y and 11xy
Answers: 3
Mathematics, 21.06.2019 19:30
Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = β3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, β6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (β5, 1) is y = 1.
Answers: 1
Mathematics, 21.06.2019 19:40
It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?
Answers: 1
Mathematics, 21.06.2019 20:30
Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45Β° but i donβt know how
Answers: 2
Mathematics, 21.06.2019 23:30
Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x
Answers: 1
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