Mathematics, 24.07.2020 19:01 madisontrosclair2
Erin wants to know if warming up will help runners sprint faster. Twenty-six track and field athletes volunteered to participate in her study. She randomly assigns 13 athletes to warm-up for 10 minutes. All 26 participants sprint the same distance. She calculates the mean for each group and determines that the mean for the warm-up group was 10.9 seconds, and the mean for the other group was 12.9 seconds. To test the difference of means she re-randomized the data 54 times, and the differences are plotted in the dot plot below. What can Erin conclude from her study?
Answers: 3
Mathematics, 21.06.2019 12:30
When a formula is solved for a particular variable, several different equivalent forms may be possible. if we solved a=1/2bh for h, one possible correct answer is h=2a/b . which one of the following is not equivalent to this? a. h= 2(a/b) b. h= 2a(1/b) c. h= a/1/2b d. h= 1/2a/b
Answers: 1
Mathematics, 21.06.2019 19:00
The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p β 2x + 2(20) yes, because p β 2x + 2(20) yes, because p = 2x + 2(20)
Answers: 1
Mathematics, 21.06.2019 19:00
Use the formulas a = x 2 β y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1
Answers: 2
Mathematics, 21.06.2019 21:00
God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.
Answers: 1
Erin wants to know if warming up will help runners sprint faster. Twenty-six track and field athlete...
Mathematics, 11.01.2021 21:00
Mathematics, 11.01.2021 21:00
English, 11.01.2021 21:00
Mathematics, 11.01.2021 21:00
Physics, 11.01.2021 21:00
English, 11.01.2021 21:00
Mathematics, 11.01.2021 21:00
History, 11.01.2021 21:00
Social Studies, 11.01.2021 21:00