Answer:
A
Step-by-step explanation:
Using the pythagorean theorem, 
we plug the numbers in; 
9+36=c^2
45=c^2
sqr root of 45 is 
next find the positive perfect sqr root of 45 which will be 9.
9 goes into 45 5 times so it will be 
Sqr root of 9 is 3 so it will be 
Answer:

Step-by-step explanation:
Incomplete question
Answer:
The last graph.
Step-by-step explanation:
The first thing we look for is the y-intercept at -2. The only graphs where the line passes through the y-intercept at this point are the first and the last.
The slope of the line we want is -2/3. This means the line decreases; the first graph increases, not decreases, so it must be the fourth one..
Checking the fourth graph, from the y-intercept, we go down 2 and over 3 to find the next point; this means the slope is -2/3 and this is the correct line.
Use the midpoint formula:
(-7,-4) (-1,8)
(-7 + -1) /2 , (-4 +8) /2
-8/2 , 4/2
Midpoint = (-4,2)
Answer:
Option C.
Step-by-step explanation:
Let
be a quadratic function
Then we do the function 
Where b is a real number.
If
then the function
represents a horizontal compression of the function
If
Then the function
represents a horizontal expansion compression of the function
by a factor of 
In this case, the equation is:
Then:


Thus
is a horizontal expansion of the function
by a factor of
.
The correct option is: Option C