1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Montano1993 [528]
1 year ago
6

Drag the tiles to the correct boxes to complete the pairs. Match the polar equations to their rectangular forms.​

Mathematics
2 answers:
natta225 [31]1 year ago
7 0

Answer:

  C, A, E, B, D

Step-by-step explanation:

The conversion relations between rectangular and polar coordinates can be used to find the polar coordinate equivalents. Those relations are ...

  • x = r·cos(θ)
  • y = r·sin(θ)
  • x² +y² = r²

__

<h3>x = 2</h3>

Using the expression for x, this is ...

  r·cos(θ) = 2

  r = 2/cos(θ) . . . . divide by cos(θ)

  r = 2·sec(θ) . . . . use the trig identity

__

<h3>x²+y²=36</h3>

From above, this becomes ...

  r² = 36

  r = 6 . . . . . . take the square root

__

<h3>x²+y²=2y</h3>

From above, this becomes ...

  r² = 2·r·sin(θ)

  r = 2·sin(θ) . . . . . . divide by r

__

<h3>x=√3y</h3>

Using the above relations, this is ...

  r·cos(θ) = √3·r·sin(θ)

  1/√3 = sin(θ)/cos(θ) . . . . . . divide by √3·r·cos(θ)

  tan(θ) = 1/√3   ⇒   θ = arctan(1/√3)

  θ = π/6

__

<h3>x=y</h3>

From above, this is ...

  r·cos(θ) = r·sin(θ)

  1 = sin(θ)/cos(θ) = tan(θ) . . . . divide by r·cos(θ)

  θ = arctan(1)

  θ = π/4

_____

<em>Additional comment</em>

An equation of the form y = kx defines a line through the origin and through opposite quadrants of the Cartesian plane. Above, we found the equivalent polar equation to be θ = arctan(k). Using the principal branch of the arctangent function, this is the equation of a ray.

However, the tangent function is periodic with period π, so θ = arctan(k)+π is also an equivalent to the rectangular equation. It is the opposite ray, so forms the complete line when joined with the first ray.

LekaFEV [45]1 year ago
4 0

The correct answer for the polar coordinates will be C, A, E, B, D

<h3>What is a polar coordinate system?</h3>

The polar coordinate system is a two-dimensional coordinate system in which a distance from a reference point and an angle from a reference direction identify each point on a plane. The pole is the reference point, and the polar axis is the ray from the pole in the reference direction.

The conversion relations between rectangular and polar coordinates can be used to find the polar coordinate equivalents. Those relations are ...

x = r·cos(θ)

y = r·sin(θ)

x² +y² = r²

x = 2

Using the expression for x, this is ...

r·cos(θ) = 2

r = 2/cos(θ) . . . . divide by cos(θ)

r = 2·sec(θ) . . . . use the trig identity

x²+y²=36

From above, this becomes ...

r² = 36

r = 6 . . . . . . take the square root

x²+y²=2y

From above, this becomes ...

r² = 2·r·sin(θ)

r = 2·sin(θ) . . . . . . divide by r

x=√3y

Using the above relations, this is ...

r·cos(θ) = √3·r·sin(θ)

1/√3 = sin(θ)/cos(θ) . . . . . . divide by √3·r·cos(θ)

tan(θ) = 1/√3   ⇒   θ = arctan(1/√3)

θ = π/6

x=y

From above, this is ...

r·cos(θ) = r·sin(θ)

1 = sin(θ)/cos(θ) = tan(θ) . . . . divide by r·cos(θ)

θ = arctan(1)

θ = π/4

However, the tangent function is periodic with period π, so θ = arctan(k)+π is also equivalent to the rectangular equation. It is the opposite ray, so forms the complete line when joined with the first ray.

To know more about polar coordinate system follow

brainly.com/question/14965899

#SPJ1

You might be interested in
What is 1/3 added to 5/6
Elenna [48]
7/6
Change 1/3 to 2/6 in order to have a common denominator.
Then add the numerators (2 and 5) and keep the denominator. <span />
7 0
2 years ago
Read 2 more answers
Help please and thanks will mark as brainliest
algol13
11)
3x = 180
x = 60

12)

6x + 18 = 180
6x = 162
x = 27
3 0
3 years ago
3. (x,y) → (x + 2,y) → (x, y)
Llana [10]

1) A translation 2 units right

2) A reflection over the x-axis

4 0
2 years ago
Select the correct answer from each drop-down menu. Wayne and Winston collect old coins. Winston has 8 fewer coins than Wayne ha
maria [59]

Answer:

is it timetable just wanna know an i help

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Can someone write this in standard form -7-3x=9x(x+2)
lbvjy [14]
-7 - 3x = 9x(x + 2)

Standard Form:
-9x^2 - 21x - 7 = 0
8 0
3 years ago
Read 2 more answers
Other questions:
  • Help with number 22. Image above.
    13·1 answer
  • How do you solve? using either factoring, completing the square, or quadratic formula?
    14·2 answers
  • The area of a square is 729 square feet what is the length of the side
    10·1 answer
  • sarita recorded the distances she ran for 5 days:5 miles,4mi,5.5mi,4.5,5.5 what is the mean distance sarita ran
    12·1 answer
  • What is the length of x in the diagram below ?
    13·1 answer
  • What is the name for regression
    14·2 answers
  • Nolan buys baseball bats to sell in his store. Each bat costs him $19.99 and he is using a mark up rate of 85%. At what selling
    9·1 answer
  • What is the length of the diagonal of the triangle?
    9·1 answer
  • Angle A and angle B are supplementary (180°)
    13·2 answers
  • Value of 2^3<br>can any one tell​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!