9514 1404 393
Answer:
u = ±√(-m/(k+r+y))
Step-by-step explanation:
Subtract r, rearrange, then take the square root.

Answer:
Exponential growth A, B;
exponential decay C, E;
neither D.
Step-by-step explanation:
The function
- represents exponential growth when

- represents exponential decay when

A. The equation
represents exponential growth, because 
B. The equation
represents exponential growth, because 
C. The equation
represents exponential decay, because 
D. The equation
represents neither exponential growth nor exponential decay, because this function is linear.
E. The equation
represents exponential decay, because 
A = lw
l =

w = 50 mm
a = 250 sq. mm
l =

= 5 mm
Hence, the length is 5 mm.
It would be: 6/10 & 12/20
FE=14.42
ED=9.01
angle D=58
hope this helps