Answer:
or 
Step-by-step explanation:

Answer:
See below
Step-by-step explanation:
x = 3 cos (-5pi/3) = 1.5
y = 3 sin (-5pi/3) = 2.598
Step-by-step explanation:
let the number of cookies sold on first week be=x
let the number of cookies sold on second week be= x+4
let the number of cookies sold on third week be= (x+4)×2
total number of cookies sold = 351
now 351=(x)+(x+4)+(x+4)×2
351=3x+(4+4×2)
351=3x+12
3x=351-12
3x=339
x=339÷3
x=11
Cookies sold on first week=113
Cookies sold on second week= 113+4= 117
Cookies sold on third week =113+4×2 = 113+8=121
now add all the number of cookies solved for confirmation
=113+ 117+ 121= 351
It fills the cylinder up to 10 cm.
The volume of a cylinder is given by the formula
V = πr²h, where r is the radius of the base and h is the height of the cylinder.
The volume of a cone is given by the formula
V = 1/3πr²h, where r is the radius of the base and h is the height of the cylinder.
Since the base of the flask and the cylinder are the same, this means r is the same number in both formulas.
Since the height of the flask and the cylinder are the same, this means h is the same number in both formulas.
This means that the only difference in the formulas is that the formula for the cone flask is 1/3 the formula for the cylinder.
The water that fills the cone flask will fill 1/3 of the cylinder; 1/3(30) = 10