For following scenarios, derive the system response and use plot function in matlab to plot the response.

a) x x f t (0) 1, (0) 2, ( ) 0 = = − =
b) x x f t (0) 0, (0) 0, ( ) 1 = = =
c) x x f t (0) 1, (0) 2, ( ) 1 = = − =
d) x x f t t (0) 0, (0) 0, ( ) sin(5 ) = = =
e) x x f t t (0) 1, (0) 2, ( ) sin(5 )

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt

step-by-step explanation: the answer is 27. first multiply .32 by 25 which equals 8. then add 8 to 25 which gives you 33. then you subtract that from 6 since she gave 6 to her brother.

,, add !

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92