Answer: The placebo group serves as the control group because this group corresponds to the reference point that will be compared to the other group.
Step-by-step explanation:
The control group is a reference point in an experiment they usually never receive any treatment and serves as benchmark to compare other test result which are measured. The control groups also includes individual with similar characteristics like those been tested e.g Age, health history.
Members in a control group are usually given placebos and usually do not know that they are part of the control group. This helps the researcher determine the effectiveness of the study being carried out.
Answer:
Exact form: = -3 + {2,-3-{2
Decimal form: x = -1.58578643
just deal with the power of the x , multiply and simplify
Answer:
x = 1 1/5
Step-by-step explanation:
1/3x = 2/5
multiply both sides by 3/1
x = 1 1/5
Hope this helps!!!
Answer:
To find f-¹(x) of f(x) equate f(x) to y
That's
f(x) = y
So we have
Next interchange the variables that's x becomes y and y becomes x
That's
Next make y the subject
Cross multiply
We have
4y - 7 = 10x
Move -7 to the right side of the equation
4y = 10x + 7
Divide both sides by 4
We have the final answer as
So
Hope this helps you
