Answer:
The value of the test statistic is 
Step-by-step explanation:
The null hypothesis is:
The alternate hypotesis is:
Our test statistic is:
In which X is the sample mean, 
is the null hypothesis value, 
is the standard deviation and n is the size of the sample.
In this problem:
So
The value of the test statistic is
Answer: It’s A y > x^2-4
Y < x^2+3
Step-by-step explanation:
Answer:
Hello!!
the point (6, 7) is reflected across the y axis. what are the coordinates of the reflection?
(-6, 7)
Step by Step Explanation:
When reflecting (x, y) over the x axis is (x, -y)
When reflecting (x, y) over the y axis is (-x, y)
Hope this helps!
Answer:
Look below
Step-by-step explanation:
Ok, you got a Quadrilateral with the side lengths 6, 9, 9, 12
The shortest of B is 2
Find the scale factor of the A to B
6 -> 2
6/2 = 3
Scale factor is 3
Now divide all the sides by scale factor
6/3, 9/3, 9/3, 12/3 = 2, 3, 3, 4
Add them all together to get the perimeter
2+3+3+4 = 12
Perimeter of B is 12
