Answer:
top left choice
Step-by-step explanation:
A car going at a higher speed than a second car will travel more distance in the same amount of time.
Look at the graph. For example, imagine that each grid line on the x-axis is 1 hour. Look at the 5th grid line to the right of the origin. That would mean 5 hours into the trips.
Now imagine that each grid line on the y-axis is 10 miles.
For the low speed car, at 5 hours, it traveled 40 miles.
For the high speed car, it traveled 70 miles in the same 5 hours.
That makes the x-axis the independent variable representing time, and the y-axis the dependent variable representing position.
Answer: top left choice
Answer:
35 days because waste removals will empty the pool in 39 days
Answer: The second circle
Step-by-step explanation: I got a 100
Answer:
Step-by-step explanation:
the equation line passes through(-3,0)and (0,3) is : y=ax+b
a is the slope a = (3-0)/(0+3) = 1
so : y= x +b calculate b line passes through(-3,0)and (0,3)
x=0 y=3 : 3 = 0+b so b= 3
this equation is : y= x+3
1) In this study, the control group is the first group of 310 subjects that were instructed to take only 600 mg daily of vitamin C. (Option C; that is, group 1).
2) The study is not Blind (Option C).
In an experimental setup to test a theory, A control group is the set of experimental participants that the theory to be tested isn't applied upon.
In the case of testing a new treatment, the control group is the group that the new treatment isn't administered.
For this question, the experiment was set up to test the effectiveness of a combination of vitamin A and vitamin E in treating flu cases rather than using vitamin C alone. Group A is the only group that only the old treatment alone is applied to; group 1 participants received no dosage of the new combination of treatments to be tested involving vitamins A and E, unlike the two other groups.
It is obvious now why the experimental participants of group 1 are the control group.
2) A blind experiment/study is one in which the participants don't know which group they belong to, whether they are in the control group or the other experimental group. Like in this case, if this was a blind study, the participants wouldn't know which group they belonged to or which treatment is administered to them.
A double-blind experiment/study is one in which both the conductors of the experiment and the participants in the experiment wouldn't know which group any participant is in. The conductors wouldn't know which participants were in the control or treatment group and the participants too wouldn't have an idea whether they are in the control or treatment group.
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