Answer:
Single Blind (option 1)
Step-by-step explanation:
The subjects don't know which cream they have but the technicians do.
If the subject knows which cream they have then they can be influenced by the placebo effect. If they don't know but the technicians do then the technicians will be able to look at unbiased responses from the subjects and tell if it works or not. If the technicians don't know which cream each subject has then they won't be able to learn anything from the responses. The technicians need to know which cream each subject has and the subjects can't know which cream they had.
Emma’s statement makes sense and Charles’ doesn’t, bcuz when you say 0.75 it should be 75 tenths, because it’s less than a whole number, but charles said 7 and 5 tenths, if it’s 7 and 5 tenths, it would be 7.5.
Answer:
true
Step-by-step explanation: bro please give the branleist please really need it
£733 because that’s is only yearly,so it won’t go up much with that rate
Answer:
40 ft
Step-by-step explanation:
Let x represent the length in feet of the fourth side. Then the sides perpendicular to the barn wall will have length 800/x, and the total cost of the fence will be ...
cost = $5 × (x + 2·800/x)
The derivative of cost with respect to x will be zero when the cost is a minimum:
d(cost)/dx = 5 -8000/x^2 = 0
5x^2 = 8000 . . . . . multiply by x^2, add 8000
x = √1600 = 40 . . . . feet . . . . . . divide by 5, take the square root
The length of the fourth side should be 40 feet.
