Answer:
Step-by-step explanation:
The confidence interval for population mean is given by :-
Given : Sample size :
Sample mean :
Standard deviation :
Significance level :
Critical value :
Now, the 99% confidence interval for the mean percent body fat in all men aged 20 to 29 will be :-
To solve the set of equations given above, we can use the substitution
method where we substitute one equation to the other and solving for one
variable. We do as follows:
<span>0.4x - 0.1y = 2
x = 5 + 0.25y
0.2x + 0.5y = 1
</span>0.2(5 + 0.25y)+ 0.5y = 1
y = 0
x = 5
<span>Therefore, the correct answer from the choices is option A, (5,0).</span>
Answer:
C
Step-by-step explanation:
9+3*9=36
Answer:
Step-by-step explanation:
Given the equation
comparing the equation with the slope-intercept form
Here,
so the slope of the line is -1/2
As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line, so
the slope of the perpendicular line will be: 2
Therefore, the point-slope form of the equation of the perpendicular line that goes through (-2, 3) is:
substituting the values m = 2 and the point (-2, 3)
Add 3 to both sides