Answer:
B
Step-by-step explanation:
formula s =4*pi*r^2
s=4(3.14)(3^2)
s = 12.56(9)s= 113.04
Range is set of all y-values. To find a range of graphed function, we need to know that range starts from the minimum value of graph to maximum value. That's because the minimum value is the least value that you can get by substituting the domain and the maximum value is the largest value that you can get by substituting the domain as well.
Now we don't talk about domain here, we talk about range. See the attachment! You are supposed to focus on y-axis, plane or vertical line. See how the minimum value of function is the negative value while the maximum value is positive.
That means any ranges that don't contain the negative values are cleared out. (Hence A and C choices are wrong.)
Next, range being set of all real numbers mean that graphed functions don't have maximum value or minimum value (We can say that both max and min are infinite.)
Take a look at line graph as an example of range being set of all real numbers, or cubic function.
Answer/Conclusion
- The range exists from negative value which is -9 to the maximum value which is 5.
- That means the range is -9<=y<=5
3 : 3,6,9,12,15,18,21,24,27,30
4 : 4,8,12,16,20,24,28,32,36
7: 7,14,21,28,35,42,49,56,63
9: 9,18,27,36,45,54,63,72,81
SINCE the slope is -2 it would be like this -2/1 but first plot the y-intercept onto the graph and go down 2 and over 1.
Answer: Andy covers all the walls of his kitchen using 6 rolls of a wallpaper.
To Find:
Number of rolls used per wall.
Solution:
Since, we know that the shape of a kitchen is a cuboid.
And a cuboid has total 6 faces, with 4 walls, one roof and one floor.
So, total number of walls in Andy's kitchen = 4
Now, it is given that he uses 6 rolls of wallpaper to cover 4 walls completely.
In order to find the number of rolls used per wall, we'll have to divide the total number of rolls used with the total number of walls.
Number of rolls used per wall =
So, 1.5 rolls are used to cover one wall.
Step-by-step explanation: