Answer:

Step-by-step explanation:

Answer:
d. 0
Step-by-step explanation:
The table can be interpreted as:

Required
Find 

Substitute: 

Using a calculator

Hence:

Standard error (SE)

Or

Therefore, SE of the mean = (8)/(2) =4
Answer:
zero property
Step-by-step explanation:
if it equals zero its zero property
The diagonals of a parallelogram bisect each other.
DH = HF and GH = HE
x + 5 = 2y
3x - 1 = 5y + 4
Solve the first equation for x.
x = 2y - 5
Now substitute 2y - 5 for x in the second equation.
3(2y - 5) - 1 = 5y + 4
6y - 15 - 1 = 5y + 4
6y - 16 = 5y + 4
y = 20
Now substitute 20 for y in the first original equation.
x + 5 = 2y
x + 5 = 2(20)
x + 5 = 40
x = 35
Answer: x = 35 and y = 20