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
azamat
3 years ago
10

Find the rectangular coordinates of the point that has polar coordinates , 4, −3π/4

Mathematics
1 answer:
kirill115 [55]3 years ago
6 0
Hello : 
 x= r cos<span>θ
 y= r sin</span><span>θ
r = 4   and  </span>θ =<span> −3π/4
cos( </span> −3π/4 )  = cos(  3π/4 ) = cos ( π - <span>π/4) = - cos (</span><span>π/4)= - </span><span>√2/2
</span>sin(  −3π/4 )  =  -  sin(  3π/4 ) = - sin ( π - π/4) = -sin (π/4)= - √2/2
x = - 2 √2
 y = - 2 √2

You might be interested in
Study the graph carefully. Which of the following statements is true? The graph is drawn correctly. The titles are misleading. T
Trava [24]
Its the 3rd one because none of them are the same
4 0
3 years ago
Read 2 more answers
Plzzzzzz help am stuck
juin [17]
50.17
..................
4 0
3 years ago
Read 2 more answers
All of the following are equivalent, except _____.<br><br> 3x<br> 2x 2<br> x(2 + 1)<br> 2x + x
Blizzard [7]
2x 2 is the answer your looking for,

When there are two variables (letters) you combine them by adding
6 0
2 years ago
Solve using substitution: y + 2x = -1 and y - 3X = 16
marusya05 [52]

Answer:

Alright i'm just going to assume your doing both of them one at a time.


y + 2x = - 1: So Alright Graph using the slope and y-intercept

Slope: - 2

Y-intercept: - 1

And the other

- 3x = 16: same as well So the Answer to this is Except solve for x by simplifying both sides of the equation, then isolating the variable

Exact form: x = - 16/3

Decimal form: x = - 5.3 Well Hope this helps :)


Step-by-step explanation:


8 0
3 years ago
Could someone tell me how to work this problem 7.86 x4.6 please
Hoochie [10]
In order to solve this problem, we just have to multiply it normally. Firstly, remove the decimals first and proceed with the multiplication process.
786 x 46 would be 36156. Going back to the decimals, how many decimal places are there in total? So there are three decimal places. Now, from 6, count 3 backwards, and that makes 36.156. I hope that this answer helps. Let me know if you need more help next time.
5 0
3 years ago
Other questions:
  • Given b= 4 and c= -5, evaluate b2 - c2.<br> 41<br> -2<br> -9
    10·1 answer
  • Can somebody explain to me stem and leaf diagrams please?
    10·1 answer
  • If x / 4=5, is x / 5 = 4 also true? why or why not?
    7·2 answers
  • A bag contains 816 White market 14 red marbles and 10 Green marbles a marble is drawn at random from the bag what is the probabi
    9·1 answer
  • Suppose Aldo borrows $5500 at an interest rate of 9% compounded each year assume that no payments are made on the loan how much
    5·1 answer
  • The weight of an object on Mars is about 2/5 its weight on Earth. How much would an 80 1/2 pound dog weight on Mars?
    6·1 answer
  • Two fair dice are rolled at the same time.<br> What is the probability that the total score is 6.
    6·1 answer
  • ----------------------------------------------------------------------------------------------------------
    13·1 answer
  • Please help me with this!
    15·2 answers
  • The formula for the volume of a cylinder is V = π r^2 h. Solve V= π r^2 h for h, the height of the cylinder.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!