Step-by-step explanation:
#34.
After a dilation of 2 (about the origin), all coordinates will be doubled.
Thus the image is 2 time the original matrix, or
-6 -4 -1
8 2 10
#37
a12 means the element on the first row, and the second element from the left.
The question does not indicate which matrix is named "a", but by elimination, we will assume it is the first matrix in the matrix equation.
Isolating the elements 12 (first row, second element) in the equation, we get
a12+5 = 1
which tells us that
a12=1-5 = -4
Answer:
Step-by-step explanation:
The probability distribution of sampling distribution is known as it sampling distribution.
The mean and standard deviation of the proportion is given by :-
, where p =population proportion and n= sample size.
Given : According to a survey, 50% of Americans were in 2005 satisfied with their job.
i.e. p = 50%=0.50
Now, for sample size n= 1000 , the mean and standard deviation of the proportion will be :-
Hence, the mean and standard deviation of the proportion for a sample of 1000:
Purchase price of the house = $360,000
Price of the house after 1 year = $253,800
Percent decrease in the value of the house = * 100
⇒ Percent decrease in the value of the house = * 100
⇒ Percent decrease in the value of the house = * 100
⇒ Percent decrease in the value of the house = 29.5%
Hence, the price of the house decreased by 29.5% over an year.
Answer:
I think 38%
Step-by-step explanation: