Answer:
a) 0.4571
b) How many sedentary people are needed in the study to achieve 80% power? = 229
Step-by-step explanation:
Answer: The answer would be letter A
slope (m)=-9/2
intercept on x-axis=56/9
intercept on y-axis=28
Explanation:
18x+4y=112
(18x)/112+(4y)/112=1
(x/1)/(56/9)+y/28=1
intercept on x-axis=56/9
intercept on y-axis=28
now, 4y=-18x+112
y=-9/2x+28
so, slope (m)=-9/2
Step-by-step explanation:
Move all terms that don't contain y to the right side and solve.
y
= 28 − (9
x)
/(2)
The answer is 9 because 9x9=81. Hope this helps!
Answer:
A=45
Step-by-step explanation:
If you take a pencil and put it in the middle of the line it looks like it could be half of the other side
180-45=135
<span>In the question "Which equation results from taking the square root of both sides of (x – 9)2 = 81?" The correct answer is x - 9 = +/- 9.
Taking the square root of both sides of the equation (x - 9)^2 = 81 will give:
sqrt(x - 9)^2 = sqrt(81)
x - 9 = +/- 9
Solving the equation results in two equation:
x - 9 = 9 and x - 9 = -9
x = 9 + 9 and x = -9 + 9
x = 18 and x = 0</span>
