Mathematics, 19.01.2021 22:10 kkeith121p6ujlt
In order to estimate the amount of time students spend on homework, the principal at a high school plans to survey a sample of students. Because the principal believes that different grade levels have different amounts of homework, the plan is to take separate random samples of freshmen, sophomores, juniors, and seniors. What type of sample did the principal perform
Answers: 3
Mathematics, 21.06.2019 13:00
Remmi wrote the equation of the line y=⅓(x+2) he solved for x and got x=3y-2 which of the following is an equivalent equation for x? a.x=y-11/3 b.x=y+7/3 c.x=3(y-⅔) d.x=3(y+⅔)
Answers: 1
Mathematics, 21.06.2019 18:40
Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form: science fiction books to history books 2. write the ratios as fractions: dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.
Answers: 1
Mathematics, 22.06.2019 06:10
Which expression has a negative value? 2+12 (-) ) -35-5
Answers: 2
In order to estimate the amount of time students spend on homework, the principal at a high school p...
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