Answer:
98
Step-by-step explanation:
Subtract 14 from both sides (14-14 and 28-14)
The equation is now 1/7x=14
From here you have to get rid of the denominator of 1/7x so to cancel it out you must multiply both sides by 7.
1/7x · 7 = 1x
14 · 7 = 98
You then have the answer which is x = 98
14.347 rounded to the nearest tenth would be 14.300. It would lie in the middle of 14.200 and 14.400 on a number line.
Answer:
df.= 28
P - value = 0.0124 < 0.05
There is a difference between the mean of the well-being measure for the children of alcoholics, and a mean of the control group.
Step-by-step explanation:
As the given test is dependent or paired test the degrees of freedom is n-1 = 20-1 = 28
The reported t = 2.67
The P value for ∝= 0.05 at calculated t= 2.67 and 28 d.f is 0.0124 which is less than 0.05 .
The null hypothesis is rejected.
The null hypothesis is that there is no difference between the means of the two samples.
H0: u1 = u2
The alternate hypotheis is accepted that there is difference between the means of the two samples.
Ha: u1≠ u2
There is a difference between the mean of the well-being measure for the children of alcoholics, and a mean of the control group.
Answer:
area is 21
Step-by-step explanation:
the formula to find the area of a triangle is
area = 1/2 x base x height
so we can plug the numbers of your triangle in to that formula
the base is 7 and height is 6
area = 1/2 x 7 x 6
area = 1/2 x 42
area = 21
Letter C is the correct answer
