Answer:
The manipulated variable is plant A listening to classical music.
The responding variable is plant B just there growing lol, its the control group.
Explanation:
Answer: The placebo effect
Explanation: The placebo effect is defined as a phenomenon in which some people experience a benefit after the administration of an inactive substance or sham treatment. What exactly is a placebo? A placebo is a substance with no known medical effects, such as sterile water, saline solution, or a sugar pill.
Perimeter = 2(L + W) = 20 or L + W = 10
And Area = L x W = 24
So with have the SUM "S" of 2 numbers and te PRODUCT "P' of same numbers, then
we can apply te quadratic equation X² -SX + P
X² - 10X + 24 = 0, solve this equation and you'll find L = 6 in and W = 4in
or 4 in x 6 in
