Answer:
Expand the 21(2-x)=42-21x
then you add 12 x with 42-21x
making it 42-9x=44
hence,
-9x= 2
9x= -2
x= - 2/9
hope this helps. :)
Z2 z z2 z z4
Which is correct
Answer:
y = 4 sin( 0.5t -
) - 2
y = a sin ( 2t -
) + 2
Step-by-step explanation:
In the first question,
amplitude = 4
Period = 
phase shift = 
Vertical shift = -2
Angular velocity , w = 
Here, w =
= 0.5
The general equation of a wave is
y = a sin( wt + ∅ )
Putting above values in the equation,
y = 4 sin( 0.5t -
) - 2
In the second question,
Amplitude is not given so we will take it as a.
time period = 
w = 2
Phase shift = 
Vertical shift = 2
The equation is
y = a sin ( 2t -
) + 2
Answer:
Dragon = $36, Yuki = $30
Step-by-step explanation:
Dragon Sushi:
$12/8 pieces = $1.50/piece
$1.50/piece x 24 pieces = $36/24 pieces
Yuki's Steakhouse =
$15/12 pieces = $1.25/piece
$1.25/piece x 24 pieces = $30/24 pieces