Answer:
Option B is correct
Step-by-step explanation:
Given is a cos funciton.
Period = 3
Max = 20 and minimum =0
Hence centre line is y = 1/2 (max+min)
i.e. y =10 is the central line
Let the funciton be of the form
y = a cos (bx+C)+d
We got d = 10...i
Period =3
Hence b =
... ii
Amplitude = a = distance of max from central line = 20-10 =10...iii
Since reflection over x axis, sign of a =negative
a=-10
Since no horizontal shift, c=0 ... iv
Put to gether the function is

Answer:
RZ = 71
SW = 142
x = 22
Step-by-step explanation:

47+90=137
(90 because it is a right triangle)
180-137=43
Answer=43°
Answer:
add 55 + 1 than you will get your answe
Step-by-step explanation: because its saying how much so that mean its sayingh how much in total