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
svet-max [94.6K]
3 years ago
14

Convert polar equation to rectangular coordinates θ = − (9π/ 2)

Mathematics
1 answer:
yan [13]3 years ago
7 0
Visualize pi/2 as 90° on the unit circle. this has no real component, only imaginary. same for 3pi/2, or -pi/2 as shown in this equation:

- \frac{ \pi}{2}  = 0  -  i

as you move around the unit circle, you'll find that 9pi/2 is the same angle as pi/2.

Thus, the rectangular coordinates are:
- \frac{9\pi}{2}  =  0 -  i


You might be interested in
Give the value of x .<br><br> A. 60 degrees<br> B. 180 degrees<br> C. 120 degrees<br> D. 45 degrees
Harrizon [31]

Answer:

x=120°

Step-by-step explanation:

sum of all angles in a triangle is equal to 180

let the unknown angle be

\alpha

60 + 60 +  \alpha  = 180 \\  \alpha  = 180 - 60 - 60 \\  \alpha  = 60 \\

\alpha  + x = 180 \\ x = 180 -  \alpha  \\ x = 180 - 60 \\ x = 120

5 0
2 years ago
Please help meeeeeeeeee ​
castortr0y [4]

Answer:

37.3% is the take off

Step-by-step explanation:

so an easy route is to subtract the price after the reduction

89.99-56.49= 33.5 that is 37.3 percent

because 62.78% of 89.99 is 56.486723 round i and you get 56.49 so this is a check your work

4 0
3 years ago
Which of the following is the correct equation for the distance formula for the points (x1, y1) and (x2,y2)?
svp [43]

Answer:

  A. D=sqrt( (x2-x1)^2+(y2-y1)^2 )

Step-by-step explanation:

The distance between two points is the root of the sum of the squares of the differences in their corresponding coordinates. The equation of choice A is the usual formulation.

__

<em>Comment on answer choices</em>

Because the square of a number is the same as the square of its opposite, the formula in choice D is also correct.

4 0
3 years ago
Marcia made spiral books to sell at her local craft fair. She forgot to count how many she made before the fair. She knows that
Alex787 [66]

Answer:

B) 0.60n+1.48n = 176.80

Step-by-step explanation:

0.60 for every spiral wire per book = 0.60*n

0.74 per chipboard cover, 2 needed for each book = 1.48 per book = 1.48*n

Put it together: 0.60n+1.48n = 176.80

5 0
2 years ago
chuck knows that 1/50 = 0.02 how can he use this information to find the fraction form for the decimal 0.86?
lisabon 2012 [21]
Just a guess but I think it is 0.43. By dividing the decimal 0.02 into the Denominator
4 0
3 years ago
Read 2 more answers
Other questions:
  • Graph each figure with the given vertices and its image after the indicated glide reflection. : R(1, -4), S(6, -4), T(5, -1) Tra
    5·1 answer
  • James has just sold his motorbike for £1,890.  He bought the motorbike for £2,700.  What fraction of the original cost did he se
    10·1 answer
  • The coordinates of the vertices of quadrilateral ABCD are A(-1, -1), B(-3, 3), C(1, 5), and D(5, 2).
    11·1 answer
  • Can you guys help me on this one or like answer it
    10·2 answers
  • PLEASE HURRY!!!!!<br><br><br> What is the turning point of the graph of f(x) = |x – 4| ?
    15·1 answer
  • If you saved 2.00 on january 1, 4.00 on february 1, 6.00 on march 1 and so on how much money would you save in a year
    8·1 answer
  • Find the slope of the line
    8·2 answers
  • Which of the following represents the area of a rectangle with a length of (3x + 2)
    5·1 answer
  • Will give 40 points!!!!<br> Need this like NOW!!
    10·2 answers
  • What is the inverse of 2x-3?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!