Question

asked 2020-10-27

That parametric equations
contain more information than just the shape of the
curve. Write a short paragraph explaining this
statement. Use the following example and your
answers to parts (a) and (b) below in your
explanation.
The position of a particle is given by the parametric
equations \(x =\ \sin\ (t)\ and\ y =\ \cos\ (t)\) where t
represents time. We know that the shape of the path
of the particle is a circle.
a) How long does it take the particle to go once
around the circle? Find parametric equations if the
particle moves twice as fast around the circle.
b) Does the particle travel clockwise or
counterclockwise around the circle? Find parametric
equations if the particle moves in the opposite
direction around the circle.

asked 2021-03-18

Write a short paragraph explaining this statement. Use the following example and your answers Does the particle travel clockwise or anticlockwise around the circle? Find parametric
equations if the particles moves in the opposite direction around the circle.
The position of a particle is given by the parametric equations
\(x = sin t, y = cos t\)
where 1 represents time. We know that the shape of the path of the particle is a circle.

asked 2020-11-17

Write a short paragraph explaining this statement. Use the following example and your answers How long does it take the particle to go once around the circle? Find parametric
equations if the particle moves twice as fast around the circle.
The position of a particle is given by the parametric equations
\(x = sin t, y = cos t\)
where 1 represents time. We know that the shape of the path of the particle is a circle.

asked 2021-03-05

1. A curve is given by the following parametric equations. x = 20 cost, y = 10 sint. The parametric equations are used to represent the location of a car going around the racetrack.
a) What is the cartesian equation that represents the race track the car is traveling on?
b) What parametric equations would we use to make the car go 3 times faster on the same track?
c) What parametric equations would we use to make the car go half as fast on the same track?
d) What parametric equations and restrictions on t would we use to make the car go clockwise (reverse direction) and only half-way around on an interval of [0, 2?]?
e) Convert the cartesian equation you found in part “a” into a polar equation? Plug it into Desmos to check your work. You must solve for “r”, so “r = ?”

asked 2020-12-27

Eliminate the parameter and obtain the standard form of the rectangular equation.
Circle: \(x = h + r cos(?), y = k + r sin(?)\)
Use your result to find a set of parametric equations for the line or conic section. \((When 0 \leq ? \leq 2?.)\)
Circle: center:
(6, 3),
radius: 7

asked 2021-01-08

Parametric to polar equations Find an equation of the following
curve in polar coordinates and describe the curve.
\(x = (1 + cos t) cos t, y = (1 + cos t) sin t, 0 \leq t \leq 2\pi\)

asked 2021-03-01

Parametric equations and a value for the parameter t are given \(x = (60 cos 30^{\circ})t, y = 5 + (60 sin 30^{\circ})t - 16t2, t = 2\). Find the coordinates of the point on the plane curve described by the parametric equations corresponding to the given value of t.

asked 2021-03-11

Find the volume of the solid generated by revolving the revolving the region bounded by the graphs of the equations and inequalities about the y-axis

\(\displaystyle{x}^{{2}}-{y}^{{2}}={25},{x}\geq{0},{y}=-{5},{y}={5}\)

\(\displaystyle{x}^{{2}}-{y}^{{2}}={25},{x}\geq{0},{y}=-{5},{y}={5}\)

asked 2020-12-22

Determine which of the following are linear inequalities and linear equations.Write LI if the sentence is linear inequality and LE if it is linear equation

1.2x+y>1

2.y=3x-6

3.y-5<7x

4.\(3s >= t+1\)

5.x+5y=10

1.2x+y>1

2.y=3x-6

3.y-5<7x

4.\(3s >= t+1\)

5.x+5y=10

asked 2020-12-25

A skateboarding park charges $7 per session to skate and $4 per session to rent safety equipment. Jared rents safety equipment every time he skates. During one year, he spends $99 for skating charges and equipment rentals.

Which equation can be used to find x, the number of sessions Jared attended? (A) 99 = 7x (B) 99 = 7x + 4x (C) 99 = 7x + 4 (D) 99 = 4x + 7

kumu

kumu

5.0

Which equation can be used to find x, the number of sessions Jared attended? (A) 99 = 7x (B) 99 = 7x + 4x (C) 99 = 7x + 4 (D) 99 = 4x + 7

kumu

kumu

5.0