
well, we know the common difference is -3, to go from the 4th term to the 8th term, we need to add "d" 4 times or namely 3+4(-3), likewise to go from the 13th term to the 19th term we have to add "d" 6 times, or namely -24 + 6(-3).

Answer:
Math way
Step-by-step explanation:
use this to help u
Answer:

Step-by-step explanation:
a. Let, p be the parameter being tested. From the sample, 38% would erase all of their personal information.
-we know that the value of probabilities are in the range [0,1]:
-Given that 38% is the true value of the claim can be symbolically expressed as p=0.5
b. The null hypothesis usually represents the true value parameter under study.
-As stated above, the true value of the parameter is 38%;
-Hence, the null hypothesis is 
#Alternative hypothesis is the control value, given the value of the parameter p=0.38, the alternative hypothesis is that p has a different value other than 0.39:

Answer: 9 cm
Step-by-step explanation:
The formula of the area of a square is
A = s²
The ‘A‘ stands for area and the ‘s’ stands for side measure.
Now, since you already know the side measure, it’s 3cm, you just have to put it into the equation.
So, now you have:
A = 3²
A = 9
Therefore, the area of the square is 9 cm.