Making the usual substitutions (x=r·cos(θ), y=r·sin(θ)), you have
(r·cos(θ))² +4r·cos(θ) +4 + (r·sin(θ))² -4r·sin(θ) +4 = 8
r(r +4·cos(θ) -4·sin(θ)) = 0
Dividing by r then subtracting the non-r terms gives
r = 4(sin(θ) -cos(θ))
The formula of the cylindrica's volume is :
The approximate total volume of the 12 cans would :
Therefore, the answer would be the option C.
Hope this helps !
Photon
Answer:
the anwser is (3,0)
Step-by-step explanation:
substitute the vaule of Y into the equation
-2x +1/3x -1 = -6
solve
x = 3
substitute the vaule of X into the equation
Y= 1/3 x 3 -1
solve
y = 0
then check your anwser
Solving for the value that makes both true
dvide the left equation by 3 to simplify
3x-2y=1
oh, they are same equaiton
inifnite solutions
the solutions are the points on the line y=(3/2)x-(1/2)
let the goldfish be x and the guppies be y
4x + 3y = 29...equ(1)
3x + 5y = 30...equ(2)
multiplying equation 1 by 5 and equation 2 by 3
20x + 15y = 145...equ(1)
9x + 15y = 90...equ(2)
subtracting equation 2 from 1
11x = 55
∴x = 5
substituting the value of x into equation
4(5) + 3y = 29
20 + 3y = 29
3y = 9
∴y =3
