how to find the measure of a arc in a circle

Answers

Answer 1

Answer:

using the (pi) which is the formula

Answer 2

9514 1404 393

Answer:

  it depends on what measure you want

Step-by-step explanation:

The angular measure of an arc of a circle is equal to the central angle it subtends.

  θ = θ

__

The length measure of an arc of a circle is equal to the product of the central angle in radians and the radius.

  s = rθ


Related Questions

8th grade math, please help.

Answers

Answer:

∠x = 16°

Step-by-step explanation:

∠x = 180° - (180° - 16°) = 16°

Answer:

16° because alternative exterior angles are equal

Find the measurements of ∠A, ∠B, ∠C, ∠E, ∠F, ∠G, and ∠H. 66°=∠D


∠A= ∠E= ∠H=
∠B= ∠F=
∠C= ∠G=

Answers

Answer:

The answer is

[tex] < a = < e = < h = < c = < g = 66 \\ < b = < f = 114[/tex]

Step-by-step explanation:

I am a math teacher If you need any explanation you can communicate with me on Whats on this number +201557831028

Pls answer if u know the answer, don't just do it for points.
A motor is rated at 1500 Watts and a second motor is rated at 2200 Watts. If they each needed to lift a 100 kg box 20 meters, which one would get the job done first?

Answers

Answer:

motor of the 1500

                                       

Step-by-step explanation:

i took the test hopefully is the right one.

Find the value of each variable

Answers

Answer:
a° = 41°
b° = 139°

Explanation:
Vertical angles are opposite angles created by a pair of intersecting lines, and are equal in measure.
Angle a° is a vertical angle with the angle created by D and B.
a° = ∠DB
a° = 41°

Straight lines are 180°.
Line DC is straight and is divided into two angles, which will add to 180°.
b° + 41° = 180°
b° = 180° - 41°
b° = 139°

Answer:

a° = 41°

b° = 139°

Step-by-step explanation:

a° = ∠DB

a° = 41°  

b° + 41° = 180°

b° = 180° - 41°

b° = 139


A car is travelling at 40 mph
How long will it take this car to travel 130 miles?

Answers

Answer:

3.25 hours

Step-by-step explanation:

if the car is going 40mph then devide 130 by 40 to get the amount of time. that's how I was taught in school, sorry if it's wrong.

Write the equation of a parabola in factored form if the x-intercepts are (3,0) and (-5,0) with a maximum point at ( -1,8)

Answers

Answer:

y = - [tex]\frac{1}{2}[/tex] (x - 3)(x + 5)

Step-by-step explanation:

Given the x- intercepts are x = 3 and x = - 5 then the corresponding factors are

(x - 3) and (x + 5)

The equation is the the product of the factors, that is

y = a(x - 3)(x + 5)  ← a is a multiplier

To find a substitute (- 1, 8) into the equation

8 = a(- 1 - 3)(- 1 + 5) = a(- 4)(4) = - 16a ( divide both sides by - 16 )

- [tex]\frac{1}{2}[/tex] = a

Then

y = - [tex]\frac{1}{2}[/tex] (x - 3)(x + 5) ← in factored form

substitute this equation y=2/3x-1 if y=3

Answers

Answer:

I believe what your asking me to do is put the y value back into the equation and solve for x. If so x=6 or x=(5/9) SEE BELOW

Step-by-step explanation:

y=(2/3)x-1 , y=3

3=(2/3)x-1

4=(2/3)x

x=6

OR

y=2/(3x-1)

x=(5/9)

Lets see if you practiced your division..5,316/3= .Use any place value strategy to divide

Answers

1,787 is the correct answer

Can someone please explain c?
Q1.
The roots of the quadratic equation
x2 + 2x - 5 = 0
Are a and B
(a) Write down the value of a + ß and the value of aß.
(b) Calculate the value of a2 + B2
(c) Find a quadratic equation which has roots a3 + 1 and aß3 + 1.

Answers

Answer:

Idek

Step-by-step explanation:

What is the percent saved on a pair of sun glasses with a regular price of $15.95 which are on sale for $13.56?

Answers

Answer:

15%

Step-by-step explanation:

15% of 15.95 is 2.39, which if we subtract from 15.95 we get 13.56

Could I please have Brainliest? Hope this helps! :)

Answer:

100%->15.95

1%->0.1595

15.95-13.56= 2.39

2.39÷0.1595

≈ 14.98% (corrected to 2 decimal places)

Miguel is making trail mix. He uses 513 ounces of nuts and 234 ounces of raisins. Which of these is a reasonable estimate for how many more ounces of nuts than raisins Miguel uses?

Answers

Answer:

2.58 more nuts Miguel uses than raisins

Hope this helps!

Pleaseee helppp answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

XT and XW

Step-by-step explanation:

They are indicated congruent by the congruency marks on each.

Ben's Game World is having a sale on video games. The store is offering a sale pack of 4 video games for $43.80. What is the unit price of a video game in the sale pack?

Answers

Answer:

Answer:

a) 10.95

b) 76.65

Step-by-step explanation:

To find the unit price of Ben's video games, divide 43.80 by 4, which is equal to 10.95. So, the unit price is 10.95 at Ben's Game World.

Then, using the unit price we found earlier, multiply 10.95 by 7, which will gives us the cost of 7 games at Roberto's Electronics. You'll get 76.65. So, the cost of 7 games at Roberto's Electronics, using the same unit price at Ben's Game World, would be 76.65.

Hope this helps :)

A shopkeeper bought an almirah from aWholesaler for & 5ooo and sold itfor $5700. Find his profit or less or
persent
.​

Answers

Answer:

c.p.= 5000

s.p.=5700

selling price is greeter than cost pries

then their is a profit

profit=S.p.- c.p.

p=5700-5000

so the profit was the rupees=700

the shopkeeper had a profit of rupees of 700.

Step-by-step explanation:

PLS HELP

How many solutions does this system of equations have?
y= -6x-7
y=-6x-7

Answers

Answer:

They can have infineyely many solutions :)

If b is a positive real number and m and n are positive integers, then
b^m/n = n square root b^m = (n square root b)^m.
O A. True
B. False

Answers

Answer:

true

Step-by-step explanation:

What is the slope of the line

Answers

Slope = 1/2

Hope this helps! Have a great day :)
Yeah, it’s 1/2, you go up 1 and right 2 because the line touches the center of the intersecting lines

PLEASE HELP ITS DUE SOON, ILL GIVE BRAINLEST

Answers

Answer:

2

Step-by-step explanation:

(6*2.5)/6.5 = 30/13

Answer:I think its B 30/13

Step-by-step explanation:

I used a calculator

Can someone help me, please I need help with this thing

Answers

Answer:

9

Step-by-step explanation:

if LA = AK then the triangle is isosceles

if the two triangles are similar then we can use this proportion to find LA:

8/12 = 6/LA

cross-multiply:

8·LA = 72

LA = 9

PLEASE SHOW WORK ILL GIVE BRAINLIEST

Answers

Answer:

[tex]\frac{9}{20}[/tex] [tex]miles^{2}[/tex]

Step-by-step explanation:

To find the area of a rectangle, use the formula A = l*w, where l is the length and w is the width.

A = [tex]\frac{9}{10}[/tex] x [tex]\frac{1}{2}[/tex] = [tex]\frac{9}{20}[/tex] [tex]miles^{2}[/tex]

Find
1/4 divided by 2/9. Input your answer as a reduced fraction.

Answers

Answer:

9/8

Step-by-step explanation:

The solution of the expression '1/4 divided by 2/9' in a reduced fraction is 9/8.

Used the concept of division which states that,

The division method is used to distribute a group of things into equal parts. The division is just the opposite of multiplications.

Given that,

1/4 divided by 2/9.

Now, divide the numbers and find the reduced fraction as,

1/4 divided by 2/9

It can be written as,

[tex]\dfrac{1}{4} \div \dfrac{2}{9}[/tex]

[tex]\dfrac{1}{4} \times \dfrac{9}{2}[/tex]

[tex]\dfrac{9}{8}[/tex]

So, the solution is 9/8.

To learn more about the divide visit:

https://brainly.com/question/28119824

#SPJ6

you look down at an object on the ground. If your eyes are
55 feet above the ground, and the angle of depression is 50º, how far is the object
from you?


i believe it’s 2,750 feet?

Answers

Answer:

We can think of this as a triangle rectangle.

We know that you eyes are 55ft above the ground, this can be one cathetus.

We also know that you see with an angle of depression of 50°, from this angle, our known cathetus would be the opposite cathetus.

Now we want to know how far is the object from you, this would be the hypotenuse of the triangle rectangle.

So we only know one angle and the opposite cathetus to this angle, then we can use the relation:

Sin(θ) = (opposite cathetus)/(hypotenuse)

Then if we use this equation, we will get:

Sin(50°) = 55ft/hypotenuse

hypotenuse = 55ft/sin(50°) = 71.8 ft

This means that the distance between you and the object is 71.8 ft.

help!! :( what is the equation for this circle using the center and radius?

Answers

Answer:

Well Circumference = πr^2, but I don't know what you're asking for?

3 less than four-sevenths of x is y

Answers

y = 4/7x - 3

hope this helps

Answer:4/7-3

Step-by-step explanation:

Yep

what is .382 as a fraction

Answers

Answer:

[tex]\frac{382}{1000}[/tex]

Step-by-step explanation:

Answer:

191/500

Step-by-step explanation:

We have

0.382

0.382 = 382/1,000

Simply 191/500 therefore answer is 191/500. How I got that was I divided .382/1,000 by 2 numerator and denominator.

Hope this helps

Help me please I need to get a perfect score.

Answers

Answer: 5r-5s

Step-by-step explanation:

Hope this helps :)

WILL GIVE BRAINLIEST TO WHOEVER ANSWERS ALL 3 AND GETS THE RIGHT! PLEASE HELP

Answers

Answer:

4. 21

5. 45

6. 22

Step-by-step explanation:

4. 6 + (2^4) - 1

   6 + (16) - 1

   22 - 1 = 21

5. (4 * 3²) + (18 - 9)

   (4 × 9) + (9)

   (36) + (9) = 45

6. 16 + (5² - 7) ÷ 3

PEMDAS tells us to do what's in Parentheses first

16 + ( 25 - 7) ÷ 3

16 + (18/3)

16 + 6 = 22

What do you need to do to solve the problem?
3 = -x/5
O Multiply each side by 5
O Multiply each side by - 5
O Multiply each side by 1/5
O Multiply each side by -1/5

Answers

2nd option , multiply each side by -5

Answer:

multiply each side by -5

Posting for a freind please hurry

Answers

Answer:

2) 16.2

3)18.2

4)16.6

Step-by-step explanation:

Answer:

3. 18.6.

4. 17.2.

Step-by-step explanation:

there you go calculators are fun

Question Help

Find the value of x

Answers

Answer:

x = √97

Step-by-step explanation:

Answer:√97

Step-by-step explanation:

According to pythagoras theorem,

X^2= 4^2 + 9^2

→x =√(16 + 81)

→x=√97

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