Answer: choice D) 20
-------------------------------
Explanation:
Locate 3 on the x axis number line. Draw a vertical line through 3 and this vertical line will cross the parabola at some point P. Mark this point P on the parabola. Then draw a horizontal line from P to the y axis. The horizontal line will land on y = 10. In short, this all shows us that (3,10) is a point on this parabola.
Repeat those steps above, but now for x = 7. You'll see that (7,90) is another point on this parabola.
We need to find the slope of the line through the two points (3,10) and (7,90). The average rate of change from x = 3 to x = 7 is the same as the slope of the line through those two points.
To find the slope, we use the slope formula
m = (y2 - y1)/(x2 - x1)
where (x1,y1) and (x2,y2) are the two points, and m is the slope
In this case,
(x1,y1) = (3,10) and (x2,y2) = (7,90)
further breaking down to
x1=3
y1=10
x2=7
y2=90
So we'll plug those four pieces of info into the equation and simplifying to get...
m = (y2 - y1)/(x2 - x1)
m = (90 - 10)/(7 - 3)
m = 80/4
m = 20
The slope of the line is 20, so therefore, the average rate of change is 20.
Answer:
$ 710606.606
Step-by-step explanation:
Let original price be x
x - 34% of x = 469000
=> X - 34x/100 = 469000
=> 100x -34x/100 = 469000
=> 66x/100 = 469000
=> 66x = 46900000
=> X = 46900000/66
=> X = 710606.606
Answer:
6 miles per hour
Step-by-step explanation:
we'll set up the problem like this:
3/4 mi = 1/8 hr
now multiply each side by 8:
24/4 mi = 1 hr
simplify:
6 mi = 1 hr
Answer:
Step-by-step explanation:
base = 7 units
height = 12 unit
Area of triangle = 
Answer:
(A.)A computer randomly generates 6 put of 100 numbers.
Step-by-step explanation:
This is an actual probability.
