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]
2 years 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]2 years 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]2 years 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’s the approximate value of x?
drek231 [11]

Answer:

Option C: 4

Step-by-step explanation:

<u>Use the Pythagorean Theorem:</u>

a^2+b^2=c^2

3^2+b^2=5^2

9+b^2=25

b^2=16

b=4

Therefore, the value of x is 4.

4 0
2 years ago
Read 2 more answers
SOLVE IT PLEASE + do math!!!<br> |4x-3| -5=4
valentina_108 [34]
Well first add 5 to both sides
4x-3=9
then add 3 to both sides
4x=12
then divide 4 by both sides.
x=3
5 0
3 years ago
Read 2 more answers
Divide using long division.<br> (9p2 + 8p3 + 12) ÷ (p + 1)
kodGreya [7K]

Answer:

8p∧2 ± p - 1 ± 13/p ± 1

Step-by-step explanation:

Divide (9p2 + 8p3 + 12) ÷ (p + 1) and it equals 8p∧2 ± p - 1 ± 13/p ± 1

3 0
3 years ago
Read 2 more answers
Another question math
Genrish500 [490]
-6.7 and -8.8 and 11.(-2)
4 0
3 years ago
Read 2 more answers
What is the vertex and zeros of the function f(x)=x2−4x+3
loris [4]

Answer:

The vertex is  (2,-9)

Step-by-step explanation:


7 0
3 years ago
Other questions:
  • Yochanan walked from home to the bus stop at an average speed of 5 mph he immediately got on his school bus and traveled at an a
    10·1 answer
  • X+10y-z+2x-3y+z what is the answer
    8·2 answers
  • What does circumference mean
    6·1 answer
  • How many outcomes are there for the following experiments? List all the possible outcomes. a) Tossing a coin
    13·1 answer
  • In ΔSTU, u = 900 cm, ∠T=49° and ∠U=14°. Find the length of s, to the nearest centimeter.
    8·1 answer
  • Answer please<br> please please please
    11·2 answers
  • Can someone help (8grade math)
    13·1 answer
  • Question 3 of 25 What is g(x)?​
    9·2 answers
  • Complete all 10 problems
    6·1 answer
  • yler’s brother earns a commission. He makes `2.5\%` of the amount he sells. Last week, he sold `\$9,000` worth of shoes. How muc
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!