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
mixas84 [53]
3 years ago
9

URGENT+Brainliest. Convert r=2sin(2theta) into rectangular cords.

Mathematics
2 answers:
STatiana [176]3 years ago
6 0

Answer:

r \:  = 2sin2 \theta \\  =  > r = 2.2sin\theta.cos\theta \\  =  > r = 4sin\theta.cos\theta \:  \\  \\  \sf \: we \: know \: that \:  \\  x = r \: cos\theta \:  \therefore \: cos\theta =  \frac{x}{r}  \\  \\  y = r \: sin\theta \:  \therefore \: sin\theta =  \frac{y}{r}  \\  \\  \sf \: now \\  \\  r = 4 \times  \frac{y}{r}  \times  \frac{x}{r}  \\  =  >  {r}^{3 }  = 4xy \\   \\  \sf \: again \:  \: r =  \sqrt{ {x}^{2} +  {y}^{2}  }  \\  \\  =  >  {( \sqrt{ {x}^{2} +  {y}^{2}  } })^{3}  = 4xy \\  =  >  {( {x}^{2} +  {y}^{2}  })^{ \frac{3}{2} }  = 4xy \\  =  >  {( {x}^{2} +  {y}^{2}  })^{3}  = 16 {x}^{2}  {y}^{2}

Please mark me as Brainliest

katen-ka-za [31]3 years ago
3 0

Answer:

try 14n

Step-by-step explanation:

You might be interested in
Use the graph to find the value of y = sin q for the value of q.360
polet [3.4K]

y = sin(360) = sin(0) = 0

answer: y=0

You can use the graph by drawing a unit circle centered about the origin. Then find the point and the corresponding y value.

6 0
4 years ago
Did I use the right equations to find x?
EleoNora [17]

Answer:

first one yes

Step-by-step explanation:

second one its

39x+10=180

4 0
3 years ago
Read 2 more answers
Evaluate f (2) if f (x)= 10-x^3
weeeeeb [17]
<span> f (x)= 10-x³. 
f(2) means the value of the function when x=2.
So, we need to substitute 2 instead of x.

f(2) = 10 - 2³ = 10-8 =2

f(2) = 2


</span>
7 0
4 years ago
What is 13.89 rounded to the nearest thousandth?
Musya8 [376]
13.8900 this is the answer. it is like this because thousandth is.0000. it Cant be 13.0089 because you would change the number.
7 0
3 years ago
How many one-degree angles are in a 70 degree angle?
SVEN [57.7K]

Answer:

There are 70 one degree angles in a 70 degree angle

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Easy Algebra Question! Solve for x <img src="https://tex.z-dn.net/?f=b%2B3%2Fx%3Df%2F2" id="TexFormula1" title="b+3/x=f/2" alt="
    11·1 answer
  • Help pleasee!! this is due tomrw I need answers asap!!
    13·1 answer
  • Estimate the quotient 67 divide 4?
    12·1 answer
  • What is the lcm of 20 and 30​
    10·2 answers
  • At 2pm on Tuesday the temperature was -12
    12·2 answers
  • Part 2. Which of the following descriptions represent the transformation shown in the image​
    6·1 answer
  • Whats the volume (5 points)​
    14·1 answer
  • HELP PLEASE! ASAP PLEASE!
    5·1 answer
  • The graph of a linear function passes through the points (7,0) and (-8, 45). A
    10·1 answer
  • what is the maximum number of relative extrema contained in the graph of this function ? F(x) = 3x^4 - x^2 + 4x - 2
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!