Mathematics, 02.12.2021 20:40 inneedofhelp6237
A beauty product company conducts a study to test the effectiveness of a new shampoo to control split ends. One hundred subjects have volunteered to take part in the study and will be divided into a treatment group and a placebo group. The study leader will assign the subjects to the groups randomly using slips of paper. Select each statement that could describe an appropriate step in the labeling process.
A. Write “treatment group” on 50 slips of paper and write “placebo group” on 50 slips of paper.
B. Number the subjects from 1 to 100, and write the numbers 1 to 100 on the slips of paper.
C. Write the name of each subject on a slip of paper.
D. Write random one-digit numbers on 100 slips of paper.
E. Use color-coding to distinguish the treatment group from the placebo group.
Answers: 1
Mathematics, 21.06.2019 17:30, cocothunder635
The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a. the profit when the unit price is equal to 0b. the unit price(s) when the profit is equal to 0c. the profit when the unit price is greatestd. the unit price(s) when profit is greatest
Answers: 3
Mathematics, 21.06.2019 19:10, happy121906
With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.
Answers: 3
Mathematics, 21.06.2019 19:30, sweetbri7p5v6tn
Aline passes through 3,7 and 6,9 what equation represents the line
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