These problems are about y ' = a y = step function h ( t - t ):
find yn(t) and yp(t) as in equation below, with step function inputs starting at t=4.
solution with unit step y ( t ) = e a t y ( 0 ) + \frac{1}{a} ( e a ( t - t )- 1 ) for t \geq t
a. y ' - 5 y = 3 h ( t - 4 )
b. y ' + y = 7 h ( t - 4 )
(what is y\tiny \infty? )

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72