There are 10 digits from 0 to 9
When you say 4 digit number that means it can't start with zero, then
1) there are 9 ways to chose the 1st digit (excluding zero)
2) there are only 1 ways to chose the 2nd digit (only 8))
3) there are 10 ways to chose the 3rd digit
4) there are 10 ways to chose the 4th digit
TOTAL NUMBER OF WAYS: 9 x 1 x 10 x 10 = 900
Answer:
![32](https://tex.z-dn.net/?f=32)
Step-by-step explanation:
![x=\dfrac{180-116}{2}=\dfrac{64}{2}=32](https://tex.z-dn.net/?f=x%3D%5Cdfrac%7B180-116%7D%7B2%7D%3D%5Cdfrac%7B64%7D%7B2%7D%3D32)
Answer:
![\text Slope = \frac{1}{4}](https://tex.z-dn.net/?f=%5Ctext%20Slope%20%3D%20%5Cfrac%7B1%7D%7B4%7D)
Step-by-step explanation:
the slope of the line that passes through the points
![\large \text{slope} =\frac{y_{2}-y_{1}}{x_{2}-x_{1}}](https://tex.z-dn.net/?f=%5Clarge%20%5Ctext%7Bslope%7D%20%3D%5Cfrac%7By_%7B2%7D-y_%7B1%7D%7D%7Bx_%7B2%7D-x_%7B1%7D%7D)
the slope of the line that contains the points (-1, 2) and (3, 3) is :
![\Longrightarrow \text{slope} =\frac{3-2}{3-\left( -1\right) }= \frac{1}{4}](https://tex.z-dn.net/?f=%5CLongrightarrow%20%5Ctext%7Bslope%7D%20%3D%5Cfrac%7B3-2%7D%7B3-%5Cleft%28%20-1%5Cright%29%20%20%7D%3D%20%5Cfrac%7B1%7D%7B4%7D)
Pyramid B has the greatest surface area
The way to find the total number of pieces is to take the 2 and times it by 6 so the total will be 12 pieces