Determine two pairs of polar coordinates for the point (5, -5) with 0° ≤ θ < 360°

Answers

Answer 1

Answer:

Step-by-step explanation:

x=5

y=-5

Hence it lies in 4th quadrant.

x=r cos θ

5=r cos θ  ...(1)

y=r sin θ

-5 =r sin θ  ... (2)

square and add

(5)²+(-5)²=r²(sin ²θ  +cos ²θ  )

r²=25+25=50

r=±5√2

dividing

tan θ=-5/5=-1=-tan 45°=tan (180-45),tan(360-45)

θ=135°,315°

so polar coordinates are (5√2,315°) and (-5√2,135°)

Answer 2
X=5 Y=-5 is the answer I think?

Related Questions

Does this system have one
olution,
5x + 3y = 1
35x + 21y = 2
Choose the correct answer below.
o One solution
0 Infinitely many solutions
O No solution

Answers

Answer:

infinitely many solutions cuz in mathmatices any problem has solution

PLEASE ANSWER NOW FOR A TEST
Triangle ABC is similar to triangle TNW. Side BC corresponds to side NW. The perimeter of triangle ABC = 13.46. What it the perimeter of triangle TNW? A. 3.365
B. 4.24
C. 10.28
D.13.46


Answers

I think it might be b

Sorry for tabs!! I need help in this. Please help me.

Answers

Answer: 11 more i think

Step-by-step explanation:

Please help!! I will make you brainlest.

Answers

Answer:

5) x = 12 6) y = 3.5

Step-by-step explanation:

For number 6 that one may be right I tried several ways and kept getting that answer

5. is completely write though

Hope that helps

Answer:

Question 5: x = 12, Question 6: y = 2[tex]\sqrt{3}[/tex]

Step-by-step explanation:

Use the Pythagorean Theorem to calculate missing sides.

Question 5 explanation: [tex]x^{2} + 9^2 = 15^2[/tex]n:  ⇒ [tex]x^{2} + 81 = 225[/tex] ⇒ [tex]x^{2} = 144[/tex] ⇒ [tex]x=12[/tex]

Question 5 explanation: [tex]y^{2}+6^2 =(4\sqrt{3})^2[/tex] ⇒ [tex]y^{2} + 36 = 48[/tex] ⇒ [tex]y^2 = 12[/tex] ⇒ [tex]y=2\sqrt{3}[/tex]

if u help me ur a very nice person :DDD

Answers

Answer:

D. -31 is less than -23

Step-by-step explanation:

The perimeter of the triangle is 34 cm. Solve for x.
X-3
x-3
5x-2
X =
type your answer.

Answers

5x-2+x-3+x-3 = 34
7x-8 = 34
7x/7 = 42/7
x = 6

Answer:

x=6

Step-by-step explanation:

The first thing you do is combine all the equations.

[tex](x-3)+(x-3)+(5x-2)=34\\7x-8=34\\7x=42\\x=6\\[/tex]

Now, with some quick algebra, you got it!

Maria is a florist in a small boutique. If Maria paid her supplier 8.50$/dozen for roses and sold them for 19.95$, what was the mark up in percent?

Answers

Answer:

The markup percentage was 135%.

Step-by-step explanation:

In order to find the markup percent, you have to take the sales price minus the cost and divide that by the cost. Then, you have to multiply by 100 to establish the markup percentage:

markup percentage=((19.95-8.50)/8.50)*100

markup percentage=(11.45/8.50)*100

markup percentage=135%

According to this, the answer is that the markup percentage was 135%.

Find the LCM for each pair of numbers. 2, 5 8, 10

Answers

The LCM of 2,5,8,10 is 40

HELP (ENGLISH)
Amira is preheating her oven before using it to bake. The initial temperature of the oven is 75° and the temperature will increase at a rate of 20° per minute after being turned on. What is the temperature of the oven 9 minutes after being turned on? What is the temperature of the oven tt minutes after being turned on?

Answers

The expression should be 75+20x. For every nine minutes (75+20(9)) the oven temperature should be at 255 degrees.

True or false : The function shown has an absolute Minimum

Pick the answer that best fits the description

Answers

Answer:

Cannot be determined

Step-by-step explanation:

You cannot assume the function travels down infinitely, because the function is not given to you. The graph could go up down left or right for all you know, you just cannot see it.

Cannot be determined you can not determine the answer


Describe a strategy to visualize and calculate=20% off
40.

Answers

Answer:

32

Step-by-step explanation:

First you're going to change 20% to a decimal which would be 0.20

Next, multiply .20 by 40

You should get 8

Subtract 8 from 40

You're answer is 32

shopkeeper sells tins of the same dog food in packs of four or packs of six.

Packs of four tins cost £1. Packs of six tins cost £1.20

Which is the best value for money?
You must show your working.



Answers

Answer:

Pack of 6

Step-by-step explanation:

Pack of 4 = £1

Packs of 6 = £1.20

Price per unit of each pack:

Pack of 4 ;

Unit price : cost / units

Unit price = £1 / 4 = £0.25

Pack of 6 ;

Unit price : cost / units

Unit price = £1.20 / 6 = £0.20

Pack of 6 is the best value for money as it has a lower unit price

use elimination to solve and please show ur work.
4x + 3y = 6
2x - y = -2

Answers

Answer:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

Point Form:

(0,2)

Equation Form:x=0, y=2

Answer:

(0,2)

Step-by-step explanation:

Multiply each equation by the value that makes the coefficients of  y  opposite.

3*2x-y=3*-2

Simplify

6x-3y=-6

Add the two equations

10x = 0

Divide both by 10 and simplify

x=0

Substitute x into the equations.

4*0+3y=6

3y=6

2

y=2

Work out the size of angle x.
Not drawn accurately
132°
X Х
54°

Answers

Answer:

x = 84

Step-by-step explanation:

The sum of the angles around a point = 360°

sum the given angles and equate to 360

x + 132 + 54 + 90 = 360

x + 276 = 360 ( subtract 276 from both sides )

x = 84

Answer:

x = 84°

Step-by-step explanation:

→ Recall the fact that angles around a point add up to 360°

360 - (90 + 54 + 132 ) = x

→ Simplify

360 - 276 = x

→ Simplify again

84 = x ∴ x = 84°

ILL GIVE BRAINLIEST PLEAS EHELP

Answers

Step-by-step explanation:

Evaluate the following expression: 3/7 x 8/9

Answers

24/63 and 8/21 for the simplified answer

Answer:

2(3)+

Step-by-step explanation:

just multiply the divider by the numerator

1) 8 bananas cost £4

Work out the cost of 5 bananas.

Answers

8/4 = .50

.50x5= 2.50

Lucas wants to prove that the base angles of any isosceles triangle are
congruent. He has drawn ADEF as shown. Which choice shows a segment
that does NOT subdivide ADEF into two congruent triangles?

Answers

Answer:

EG so that GF ≈ EF

Step-by-step explanation:

Need Help On Number 2

Answers

What is the question for number 2?

Please help! Will mark brainliest

Answers

Answer:

30 degrees but I have to write more stuff so brainly will let me submit my answer

Answer:

30°

Step-by-step explanation:

Because it is in the intersection of two lines, and opposite a corner that we know is 30°, then 3 must also be 30°

What is the greatest surface area of a rectangular solid that can be built from 16 identical unit cubes?

Answers

Answer and explanation:

The surface area of a solid is the sum of the areas of all faces of the solid. The surface area of a cube is calculated using the formula 6a² since a cube has 6 faces in total likewise a cuboid.

We can say the rectangular solid is a cuboid and to find the surface area of the cuboid we add up the surface area of all 16 cubes

Surface area is therefore 16×6a²

(a) An angle measures 51°. What is the measure of its complement?
(b) An angle measures 113°. What is the measure of its supplement?

Answers

Step-by-step explanation:

For a

Let the another angle be x then

x + 51° = 90° {being complementary angles }

x = 90° - 51°

x = 39°

For b

Let the another angle be x then

x + 113° = 180° {being supplementary angles }

x = 180° - 113°

x = 67°

Use the Distributive Property to solve the equation.
- 8(x + 7) = 16
Apply the Distributive Property and simplify.
- 8(x + 7) = 16
- 8x + = 16

Answers

Answer:

x= - 9

Step-by-step explanation:

- 8(x +7) = 16-8x - 56 = 16 -8x = 16 + 56-8x = 72x = 72 ÷ (-8) x = -9

Hey there!

Use the Distributive Property and simplify:

-8(x+7)=16

-8x-56=16

Notice we write -8 right next to x.

Add 56 to both sides:

-8x=16+56

-8x=72

Divide both sides by -8:

x=-9

Hope everything is clear.

Let me know if you have any questions!

#KeepLearning

[tex]\boxed{An~Emotional~Helper~here}[/tex]

607 Evaluate the expression 27+ 40 ÷ 2^3​

Answers

Answer:

27+ 40 ÷ 2^3

27+40/8

27+5

32

I am not sure, I just need points please

Karen bought 8 pounds of fruit to make 3 equal-sized fruit salads. What is the weight of each fruit salad? 2 pounds 223 2 2 3 pounds 3 pounds 313 3 1 3 pounds

Answers

Answer: 2²/₃ pounds

Step-by-step explanation:

There are 8 pounds of fruit.

These are to be used to make 3 equal sized fruit salad.

The weights of each fruit salad will therefore be:

= Pounds of fruit/ Number of fruit salads

= 8 / 3

= 2²/₃ pounds

lo estimated the height of her friend as 62 inches. if her friend is actually 65 inches tall, what is the percent error in Li’s estimate? Round your answer to the nearest tenth of a percent.
PLEASE HELP ILL MAKE YOU BRAINLIST or whatever it’s called

Answers

Answer:

3/12

Step-by-step explanation:

jayfeather friend me

I need help please, I need the answer, I am not good at math :(

Answers

Um u think it might be um I am probably wrong but try 10


I need help on this homework

Answers

Answer:

(4,0) and (2,0)

Step-by-step explanation:

For an x-intercept, y=0, so now we have:

(x-4)(x-2)=0

Anything multiplied by 0 is 0, so (x-4)=0 and/or (x-2)=0

(x-4)=0

x=4

(x-2)=0

x=2

The x-intercept co-ordinates are: (4,0), (2,0)

Answer:

x-intercepts are (4,0) and (2,0)

? divided by 1/3= 9/10

Answers

Answer:

3/10

Step-by-step explanation:

because if you use a calculator that answer would be 0.9 which is 9/10 as a decimal and if u did it yourself then you would do 1/3 x 9/10 and you would get 9/30 which is 3/10 if u simplify it

My question is what is the answer to 2y = x + 3
x = y

Answers

Answer:

(0,0)

Step-by-step explanation:

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