Answer:
(p-11)(p+11) = p square - 11 square
=p square-121
Answer:
links.
Step-by-step explanation:
Since
simple interest = Pit
where
P=principal
i=interest rate
t=time,
we see that the equation is one of joint variation, meaning that simple interest is a direct variation with each variable, P, i or t.
Therefore if ANY one of the variables is doubled, the simple interest is also doubled.
Answer:
b. 2
Step-by-step explanation:
The standard error of the sample mean is the standard deviation of the sample divided by the square root of the size of the sample.
In this problem, we have that:
Sample standard deviation of 14, sample size of 49.
So
![SE_{M} = \frac{14}{\sqrt{49}} = \frac{14}{7} = 2](https://tex.z-dn.net/?f=SE_%7BM%7D%20%3D%20%5Cfrac%7B14%7D%7B%5Csqrt%7B49%7D%7D%20%3D%20%5Cfrac%7B14%7D%7B7%7D%20%3D%202)
So the correct answer is:
b. 2