Answer:
Step-by-step explanation:
surface area of a square pyramid
= Area of base + 1/2 base perimeter * slant height
= (5 x 5) + (1/2 x (5*4) x 6)
= 25 + 60
= 85 ft²
5/11
let x=0.4545...
100x=45.4545...
100x-x = 99x=45.4545... - 0.4545...=45
x=45/99=5/11
the mean = 9, and the mean deviation = 3.75
Hope this helps! :)
