A particle moves on a circle of radius 4 cm, centered at the origin, in the xy-plane (x and y measured in centimeters). It starts at the point (0,4) and moves counterclockwise, going once around the circle in 11 seconds. (a) Write a parameterization for the particle's motion.
x(t) =,
y(t) =

SO annoying...I really thought I had this with x(t) equal to -4sin 2pi/11 * t and y(t) = 4cos 2pi/11 * t

I got the speed right, 8pi/11 cm/s but that was easy.

Please explain in great detail how you go about doing this problem... I need to know exactly what is going on..so if you want the points, show the work with explanation.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

-4, -2, 1, 4

step-by-step explanation:

domain = x values

range = y values