The factorial ! just means we multiply by every natural number less that the value so
6! =6×5×4×3×2×1= 720
for permutations we use the formula n!/(n-r)!
so we have 8!/(8-5)!=8!/3!=8×7×6×5×4
for combinations s we have n!/(n-r)!r!
so we have 12!/(12-4)!4!=12!/8!4!=12×11×10×9/4×3×2=11×10×9/2=99×5
You can seperate it into two triangles then take the area of each of those (a=1/2bh) and add each triangles area together
Answer: Points A,B, and C are collinear
Step-by-step explanation:
Answer:
The negative x-intercept is at (-1/3,0)
The positive x-intercept is at (4,0)
Step-by-step explanation:
