Answer:

Step-by-step explanation:
From the question we are told that:
Mean 
Generally the Poisson equation for \=x is mathematically given by

Therefor




Answer:
113.1
Step-by-step explanation:
V=4/3π(r)^3
V=4/3π(3)^3
V=4/3(27)π
V=36π ---> 113.1
1.19505*10¹³. Scientific notation cannot be expressed under 1 or over 10.
Answer:
254 
Step-by-step explanation:
Surface Area = 2Lh+2Lw+2wh
L=4 cm
h=9 cm
w=7 cm
Surface Area = 2(4)(9)+2(4)(7)+2(7)(9)
Surface Area = (72+ 56 +126)
Surface Area = (72+ 56 +126)
Surface Area =254 