Mathematics, 04.08.2019 07:30, rayray7155
Me plzone thousand and twenty students participated in the school math contest. sample 1 is a random sample from grades 9 and 10 and consists of the following scores: 72, 89, 67, 81, 75, 79, 81, 80, 62, 64, 83. sample 2 is a random sample from grades 11 and 12 and consists of the following scores: 84, 86, 87, 84, 86, 89, 90, 87, 87, 84, 86. choose the following statements that correctly compare the two samples. check all that are true. sample 2 shows 11th and 12th grade students, on average, did better. sample 1 has a higher probability than sample 2. the measure of center is the same for both samples. sample 1 shows 9th and 10th grade students, on average, did better. sample 2 has a higher median score than sample 1.
Answers: 1
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Mathematics, 21.06.2019 20:00, Ap621765
In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d. what is the height of the tide after 93 hours?
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Mathematics, 21.06.2019 22:40, jeffyisdrunk
The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?
Answers: 1
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Me plzone thousand and twenty students participated in the school math contest. sample 1 is a rando...
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