Find the area of a sector

Find The Area Of A Sector

Answers

Answer 1

Answer:

990 cm²

Step-by-step explanation:

Given ratio of radii = a : b , then

ratio of areas = a² : b²

Here

ratio of radii = 50 : 30 = 5 : 3 , then

ratio of areas = 5² : 3² = 25 : 9

let x be the area of sector DEF , then using proportion

[tex]\frac{25}{2750}[/tex] = [tex]\frac{9}{x}[/tex] ← [tex]\frac{ratio}{area}[/tex]

cross- multiply

25x = 24750 ( divide both sides by 25 )

x = 990

Area of sector DEF = 990 cm²


Related Questions

For the circle x^2 + y^2 = 100, a) State the radius at 6,8

Answers

Answer:

add multiply divide or subtract make sure to use Pemdas then and you should have your answer

Step-by-step explanation:

Answer:

r = 10

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ( r is the radius )

x² + y² = 100 ← is a circle centred at the origin with

r² = 100 ( take the square root of both sides )

r = [tex]\sqrt{100}[/tex] = 10

*GUYS PLEASE HELP ME ILL GIVE BRAINLIEST*

what you need to do is write an equation for each graph *ILL REALLY APRECIATE YOUR HELP*​

Answers

Answer:

Download the app photomath and right your solution

First, you need to know what "m" and "b" represents.

"m" represents slope, and "b" represents the y intercept.

For the equation you can combine the information to get y = mx + b

To find "m" indentify points, and see how many you have to go up/down then left/right.

To find "b" since the graphis given see where the line crosses the y axis. (0, b)

1. m = -1, b = 3

y = -1x + 3

2. m = 1, b = -3

y = 1x -3

3. m = 3/1 or 3, b = 1

y = 3x + 1

4. m = -3/1 or -3, b = -3

y = -3x -3

Write an equation with division, that equals 6/8.
It must be two fractions divided together.

Answers

Step-by-step explanation:

12/16 divided by 2

hope it helps u

Erin buys 4 packs of potatoes costing £2 each, 2 packs of carrots for £3 per pack, and 5 turnips costing 70p each.
If she pays with a £20 note, how much change would she get in pounds, £?​

Answers

She would get £2.50

4 times 2 is 8
2 times 3 is 6
0.7 times 5 is 3.5
Add them together
Minus it from 20
It equals £2.50

work out the y-4 when y=10​

Answers

10-4= 6 so the answer is 6
10-4=6 is your answer



HELP FAST PLS
What is the volume of this container?
4 ft²
2 ft
2 ft²
I ft
4 ft?
I ft
2 ft²

Answers

Answer:

2ft3

Step-by-step explanation:

V=lengthxwidthxheight

1ftx1ftx2ft

V=2

2 ft 3 is the correct answer

--8x + 10y = 16
-4x - 5y = 13

Answers

Step-by-step explanation:

please refer to the attachment

Substitution Method

{ -8x+10y=16
{ 4x-5y=13

{ -8x+10y=16
{ x=13/4+5/4y

-8(13/4+5/4y)+10y=16

No solution

——

Elimination Method

{ -8x+10y=16
{ 4x-5y=13

{ -4x+5y=8
{ 4x-5y=13

0=21

Still, there is no solution.

What is the horizontal asymptote

Answers

Answer:

i think the green line would be the horizontal asymptote cause its like horizontal amd it goes across the graph.

Step-by-step explanation:

help me plzzzzzzzzzzz this is for a grade dont know how to do it

Answers

Answer:

B

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

V = pi r^2 h

isolate h by moving pi & r^2 to the other side.  

Move with opposite operation from multiplying which is dividing, so

h = V / (pi r^2)

HELP are all three of these are either
One Unique Triangles
Multiple Triangles
No triangles

Answers

the first is no triangles, second Multiple Triangles, third Multiple Triangles

Step-by-step explanation:

Eşit sayıda yolcu taşıyan 3 otobüste toplam 93 yolcu vardır. Otobülerden birer
tane yolcu iniyor otobüste kaç yolcu kalır?​

Answers

Her otobüste esit dediğinden 93 ÷3den 31 yolcu vardır

Her otobüsten eşit sayıda yolcu indiğinde 31-1 den 30 yolcu kalır

Her otobüste 30 yolcu kaldığından ve 3 otobus olduğundan 30 ×3 den 90 yolcu kalir

which method would i use to solve ax^2+c=d? justify your answer.

Answers

9514 1404 393

Answer:

  x = ±√((d -c)/a)

Step-by-step explanation:

The usual "solve for ..." approach works fine in this case.

  ax^2 +c = d

  ax^2 = d - c . . . . . subtract c

  x^2 = (d -c)/a . . . . divide by a

  x = ±√((d -c)/a) . . . take the square root

_____

When there are numbers, a graphical solution could work. It depends on whether an exact or approximate solution is required.

_____

Comment on "solve for ..."

When solving an equation for a specific variable, it is worthwhile to consider the Order of Operations. Look at what has been done to the variable, then undo those operations in reverse order. Here, the variable has been squared, the product multiplied by 'a', that product added to c. So, the "undo" consists of subtracting 'c', dividing by 'a', and taking the square root.

solve for x and y

x + 10 = 2y - 3​

Answers

Answer:

y=13

Step-by-step explanation:

Simplifying y + 10 = 2y + -3 Reorder the terms: 10 + y = 2y + -3 Reorder the terms: 10 + y = -3 + 2y Solving 10 + y = -3 + 2y Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-2y' to each side of the equation. 10 + y + -2y = -3 + 2y + -2y Combine like terms: y + -2y = -1y 10 + -1y = -3 + 2y + -2y Combine like terms: 2y + -2y = 0 10 + -1y = -3 + 0 10 + -1y = -3 Add '-10' to each side of the equation. 10 + -10 + -1y = -3 + -10 Combine like terms: 10 + -10 = 0 0 + -1y = -3 + -10 -1y = -3 + -10 Combine like terms: -3 + -10 = -13 -1y = -13 Divide each side by '-1'. y = 13 Simplifying y = 13

im being timed
which number line represents the solution set for the inequality?​

Answers

Answer:

The solution is:

[tex]-\frac{1}{2}x\ge \:4\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x\le \:-8\:\\ \:\mathrm{Interval\:Notation:}&\:(-\infty \:,\:-8]\end{bmatrix}[/tex]

The number line graph of the solution is also attached below.

From the graph, it is clear that the 2nd number line represents the solution set for the inequality.

Step-by-step explanation:

Given the inequality

[tex]-\frac{1}{2}x\ge 4[/tex]

Let us solve the inequality

[tex]-\frac{1}{2}x\ge 4[/tex]

Multiply both sides by -1 (reverse the inequality)

[tex]\left(-\frac{1}{2}x\right)\left(-1\right)\le \:4\left(-1\right)[/tex]

Simplify

[tex]\frac{1}{2}x\le \:-4[/tex]

Multiply both sides by 2

[tex]2\cdot \frac{1}{2}x\le \:2\left(-4\right)[/tex]

Simplify

[tex]x\le \:-8[/tex]

Thus, the solution is:

[tex]-\frac{1}{2}x\ge \:4\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x\le \:-8\:\\ \:\mathrm{Interval\:Notation:}&\:(-\infty \:,\:-8]\end{bmatrix}[/tex]

The number line graph of the solution is also attached below.

From the graph, it is clear that the 2nd number line represents the solution set for the inequality.

When might term insurance be a better option than whole life insurance???
HURRY PLS

Answers

Answer:

Term life insurance plans are much more affordable than whole life insurance. This is because the term life policy has no cash value until you or your spouse passes away. In the simplest of terms, it's not worth anything unless one of you were to die during the course of the term. Then that's when you receive money..

Step-by-step explanation:

(G0OGLED THE ANSWER)

Term insurance can be a better product if your time horizon is 10 years or less. Term insurance is better than whole life insurance especially at younger ages. Also term insurance works best because it is a low cost and low commitment program.

Someone help quickly please!

Look at picture

Name the sequence of transformations that moved figure A to figure D

A. Translation, Translation, Rotation
B. Reflection, Reflection, Rotation
C. Translation, Reflection, Rotation
D. Rotation, Translation, Reflection

Answers

Answer:

translation . translation. rotation

A. Suppose an angle measure is 55 degrees. What is the measure of its complementary angle? Draw the angle and label both measures.
B. Suppose an angle measure is 110 degrees. What is the measure of its supplementary angle? Draw the angle and label both measurements.

Answers

Answer:

A: 45 degrees

B: 70 degrees

Step-by-step explanation:

A: Complimentary angles add up to 90      90-55=45

B: Supplementary angles add up to 180      180-110=70

Please help out with this geometry homework I was assigned. And what formula do I use?

Answers

Answer:

[tex] V_{cone} \approx 1,178.97 \: {in}^{3} [/tex]

Step-by-step explanation:

Diameter of cone = 16 in

Radius of cone r = 16/2 = 8 in

Height of cone h = 17.6 in

[tex]V_{cone} = \frac{1}{3} \pi {r}^{2}h \\ \\ V_{cone} = \frac{1}{3} \times 3.14 \times {(8)}^{2} \times 17.6 \\ \\ V_{cone} = \frac{1}{3} \times 3,536.896 \\ \\ V_{cone} = 1,178.96533 \\ \\ V_{cone} \approx 1,178.97 \: {in}^{3} \\[/tex]

The number y of calories burned after x minutes of kayaking is represented by the linear function y=4.5x . The graph shows the number of calories burned by hiking.


a. Which activity burns more calories per minute?
A) kayaking
B) hiking
Question 2

b. You perform each activity for 45 minutes. How many total calories do you burn?
You burn 472.5 calories.

Question 3
Justify your answer.

Answers

Step-by-step explanation:

Aswer:

22.5 more calories are burned

Hiking:

y=255

Kayak:

y=202.5

What is the slope of the line that passes through the points (3,8) and (8,13) write the answer in simplest form

Answers

Answer: y=5

X=5

5/5 or 1

Step-by-step explanation:

what is the first step to solving 9z-21=60​

Answers

add 21 to both sides, so you get 9z = 81

Answer:

add 21 to both sides

Step-by-step explanation:

9z-21=60

9z-21+21 =60+21

9z=81

9z/9=81/9

z = 9

solve the inequality 7x+5>2x+35

Answers

Answer:

x>7

Step-by-step explanation:

7x +5 > 2x +35

-2x -5  -2x

5x>35

x>7

In ΔFGH, f = 880 inches, g = 450 inches and h=890 inches. Find the measure of ∠G to the nearest degree.

Answers

Answer:

29

Step-by-step explanation:

Delta math

The measure of the angle G will be equal to 27.50°.

What is trigonometry?

The branch of mathematics that sets up a relationship between the sides and the angles of the right-angle triangle is termed trigonometry. The trigonometric functions, also known as a circular, angle, or goniometric functions in mathematics, are real functions that link the angle of a right-angled triangle to the ratios of its two side lengths.

Given that in ΔFGH, f = 880 inches, g = 450 inches, and h=890 inches.

The value of the angle G will be calculated as,

g² = h² + f² -2hfcosG

450² = (890)² + (880)² - 2(890)(880)cosG

202500 = 792100 + 774400 + 1566400cosG

cosG = ( 1364000) / ( 12 x 890 x 880 )

cosG = 0.87

G = cos⁻¹(0.87)

G = 27.50°

Therefore, the measure of the angle G will be equal to 27.50°.

To know more about Trigonometry follow

https://brainly.com/question/24349828

#SPJ5

omg pls help me i only have a few min left imma cry

Answers

Answer:

option B

Step-by-step explanation:

since DA and CB are equal and originate from same line segmnet, they are parallel, so angle D and angle C are equal, angle A and anfle B are equal and angle E is the same for both,

174 x 206 x 532 x 174

Answers

Answer:

3318007392

Step-by-step explanation:

174 x 206 x 532 x 174 = 3318007392

sorry is if this answer wrong:)

Step-by-step explanation:

174×206×532×174=

= 3,138,007,392

I hope this helps


What is the inscribed angle and the circumscribed angle​

Answers

the inscribed angle is the one on the inside of the circle and the circumscribed angle is the right angle on the outside of the circle :)

Answers for questions

Answers

Answer: Thx for the answer

Step-by-step explanation:

Answer:

1: tan² (t)2: 13: 14: tan (t)5: -16: cos (y)7: cos (t sec (t) - t cos(t))8: 1

Step-by-step explanation:

Slope Find Value of Zero

Answers

Answer:

(3, -6) and (7, -6)

Step-by-step explanation:

Plugging it in the slope formula we get -6+6 = 0, meaning the division will be 0. This the slope is 0

whats 14/3 simplified to

Answers

Answer:

4.666667

Step-by-step explanation:

Answer:

You cant simply it.

Step-by-step explanation:

14/3 is the simplest version of 14/3. If you were looking for decimal form its 4.666667

It’s hard:(( pls help

Answers

Answer:

what the question i can't see that

Step-by-step explanation:

i think it’s four because the degree is 80 and the one side has a degree of 80 and the length is four
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