HELP ASAP!!!!! BRAINLIEST AWARD!!!!!!
Choose one of the theorems about chords of a circle and state it using your own words.
Create a problem about chords that uses the theorem that you explained. Solve the problem.

examples below:

HELP ASAP!!!!! BRAINLIEST AWARD!!!!!!Choose One Of The Theorems About Chords Of A Circle And State It

Answers

Answer 1

1.The Chord Intersection Theorem:

If 2 chords of a circle are AB and CD and they intersect at E, then

AE * EB = CE * ED.

Problem.

Two Chords AB and CD intersect  at E.  If AE =  2cm , EB = 4 and CE = 2.5 cm, find the length of ED.

By the above theorem : 2 * 4 = 2.5 * ED

ED = (2 * 4) / 2.5

= 3.2 cm.

2.1. A given chord on a circle is perpendicular to a radius through its center, and it is at a distance less that the radius of the circle.

2. A circle of center O has a radius of 13 units. If a chord AB of 10 units is drawn at a distance, d, to the center of the circle, determine the value of d.

3. From question 2, the radius = 13 units, length of chord = 10 units and distance of chord to center of the circle is d.

A radius that meet the chord at center C, and divides it into two equal parts.

So that;

AC = CB = 5 units

Applying Pythagoras theorem to ΔOCB,

OC = d, CB = 5 units and OB = 13 units

=  +  

169 = 25 +  

169 - 25 =  

144 =  

⇒ d =  

      = 12 units

Therefore, the chord is at a distance of 12 units to the center of the circle


Related Questions

Find the area of the shaded figure

Answers

Answer:

its 56 units square.

Step-by-step explanation:

(count the tiles in the shaded figure, you'll get the area)

3. Find the area of the trapezoid.
(1 point)
14.5 cm
1
8 cm
19.5 cm
68 cm
O 136 cm
214 cm
268 cm
4. The radius of

Answers

I think it’s the 5th one

1
y>
5x + 3

What is the y-intercept
(xy)

What is the slope

Will the line be solid or dotted

Answers

Given:

The inequality is:

[tex]y>5x+3[/tex]

To find:

The y-intercept, slope and type of line (solid or dotted).

Solution:

The slope intercept form of a line is:

[tex]y=mx+b[/tex]            ...(i)

Where, m is the slope and b is the y-intercept.

We have,

[tex]y>5x+3[/tex]

The relation equation is:

[tex]y=5x+3[/tex]             ...(ii)

On comparing (i) and (ii), we get

[tex]m=5[/tex]

[tex]b=3[/tex]

It means the slope is 5 and the y-intercept is 3.

The sign of the inequality in the given inequality is ">". It means the boundary line is not included in the solution set. So, the boundary line is a dotted line.

Therefore, the slope is 5, the y-intercept is 3 and the line is a dotted line.

helpp!!! i need help with this!

Answers

Answer:

51

Step-by-step explanation:

The two tangent lines can be set equal to each other

10x - 19 = 4x + 23

Solve for x

10x - 19 = 4x + 23

-4x         -4x

6x - 19 = 23

    +19    +19

6x = 42

6       6

x = 7

Plug in x and solve for FE

10x - 19 = 10(7)-19 = 51

Please help will give brainliest

Answers

Answer:

no

Step-by-step explanation:

[3(a-2) / (a+2)(a-2)] - [6a / (a+2)(a-2)] = -3/(a-2)

HELP WITH THIS PLEASEEEE

Answers

Answer:

1) G

2) B

3) I

4) H

Step-by-step explanation:

Perimeter of a triangle formula:

P = a + b + c

1)

P = x + 6 + 3x + 2 + 2x + 4

P = 6x + 12

2)

P = 6x + 4 + 7x + 1 + 5x + 7

P = 18x + 12

3)

P = 4x - 3 + 3x + 5x - 6

P = 12x - 9

4)

P = 6x - 8 + 3x + 7 + 5x - 3

P = 14x - 4

7th grade simple solutions math 85-88

Answers

Answer:

-3 85-88 lets turn that around 88-85 is 3 but the problem is 85-88 so its -3

Step-by-step explanation:

Answer:-3 (88-85=3

Step-by-step explanation:

Can I Sign in for free I'm a student so I don't know how to log in please help me I would appreciate your service thank you!

Answers

Answer:

you have to create an account which should be pretty easy to find and just use your personal email!

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation

You are signed in right now????

find the measure of the angle ​

Answers

Answer:

95

Step-by-step explanation:

Answer:

95°

Step-by-step explanation:

it is five away from  90° so 95°

Give Brainllest plz

I need help! Extra points

Answers

Question:

What is the surface area of the triangular prism?

Answer:

B) 120 square feet

Step-by-step explanation:

8 x 6 x 2.5 is equal to the surface area

120

Plz Help!! NO LINK or REPORTED

Answers

I don’t know for sure but please let me know :)

x-3=2x-3-x
Please solve with answer and how you got the answer

Answers

Answer:

3x-3

Step-by-step explanation:

You have to combine like terms. x and 2x have the same variable, so this equals 3x, and then you subtract 3 so:

x-3=2x-3-x

    =3x-3

A hexagonal aquarium needs to hold 10 gallons of water and be 24 inches tall. What should be the area of the hexagon?

Answers

Answer:

240

Step-by-step explanation:

Nine students took a mathematics quiz. Their scores were 85 ,68 ,54 ,69 ,70 ,64 ,89 .77 ,71

​Find the median.

Answers

Answer:

70

Step-by-step explanation:

The median is the value that is directly in the middle of the data set.

Hope this helps :)

The median of the mathematics quiz of the nine students is M = 70

What is Median?

The median is the value that's exactly in the middle of a data set when it is ordered. It's a measure of central tendency that separates the lowest 50% from the highest 50% of values. The steps for finding the median differ depending on whether you have an odd or an even number of data points

Arrange the data points from smallest to largest.

If the number of data points is odd, the median is the middle data point in the list.

If the number of data points is even, the median is the average of the two middle data points in the list.

Given data ,

To find the median of the scores, we need to first arrange them in order from smallest to largest:

54, 64, 68, 69, 70, 71, 77, 85, 89

Since there are nine scores, the median is the middle score when they are arranged in order.

In this case, the fifth score (70) is the middle score, so the median score is 70.

Hence , the median score for the math quiz is 70

To learn more about median click :

https://brainly.com/question/28687994

#SPJ2

This box is 3/4 inch long, 1/2 inch wide, and 1/4 inch deep. What is the volume of the box?
A: 3/16 inch ^3
B: 3/8 inch ^3
C: 3/32 inch ^3
D: 1 1/2 inch ^3

Answers

The volume of the box is 3/32 inch³. The correct option is C: 3/32 inch ^3

Calculating Volume

From the question, we are to determine the volume of the box

The volume of a box is given by the formula,

V = l × w × h

Where V is the volume

l is the length

w is the width

h is the height or depth

From the given information,

l = 3/4 inch

w = 1/2 inch

h = 1/4 inch

Thus,

Volume of the box = 3/4 × 1/2 × 1/4

Volume of the box = 3/32 inch³

Hence, the volume of the box is 3/32 inch³. The correct option is C: 3/32 inch ^3

Learn more on Volume here: https://brainly.com/question/463363

#SPJ1

In the triangle shown, determine Angle A to the nearest degree.
A
12 m
10 m
R
M

Answers

Answer In the diagram, a = 47 m and angle a measures. 49°. ... 71.6 m. Cos luod. Nost. I 10 hod. "tan (49) = 1/2 x=tan 249). 47 x 64.1. X A ... 2. In the triangle shown, determine LA to the nearest degree. A. 6.7 1B) 9.0 ... triangle. The slanted sides are both 12 inches long and the bottom of the pad is 8 inches long. 11. ... RM 7.2 cm.:

Step-by-step explanation:

In 2000 there were about 2172000 farms in the United States twenty four thousand of the farms were in South Carolina what percent of the farms were in South Carolina

Answers

Answer:

the percentage of the farms were in SOuth caroline is 1.10%

Step-by-step explanation:

The computation of the percentage of the farms were in SOuth caroline is shown below:

= NUmber of farms in south carolina ÷ number of farms in united states

= 24000 ÷ 2172000

= 1.10%

Hence, the percentage of the farms were in SOuth caroline is 1.10%

We simply used the above formula so that the percentage could come

find the volume of the cylinder!



Use 3.14 for pi-

round your answer to the tenths place !!


Will mark b if correct:)

Answers

Answer: this is the answer i got before rounding it 2123.72 but your answer is 2123.7  hope it helps

Step-by-step explanation:

Plz help me solve and show your work.

Answers

Hi there!

[tex]\large\boxed{h = \frac{15x}{y}}[/tex]

Recall the volume of a pyramid is:

V = 1/3(bh)

We are given the volume and side length of the base. Find the area of the base:

A = s²

A = (5xy²)² = 25x²y⁴

Plug in the solved for base:

125x³y³ = 1/3(25x²y⁴)h

To isolate for h, begin by multiplying both sides by 3:

375x³y³ = (25x²y⁴)h

Divide both sides by 25x²y⁴. Use the following exponent property:

xᵃ / xᵇ = xᵃ⁻ᵇ

Thus:

375x³y³ / 25x²4⁴ = 15x/y.

The height must be equal to:

[tex]h = \frac{15x}{y}[/tex]

What is the length of AC?

Answers

Answer:

2nd option

;)

I did this before-

Step-by-step explanation:

At a team meeting, 80% of the tennis team was there. If there were 12
people at the meeting, how many
people are on the team?

Answers

Answer:

15 people

Step-by-step explanation:

let x=total # of people on the team

80%=12

80/100=12/x

cross multiply

80x=1200

division property of equality (divide both sides by 80)

x=15

There are 15 people on the team.

Solve for x.
(x - 12)
2x
51

Answers

Answer:

114

Step-by-step explanation:

144 is the answer I think

You're a quality control manager in a fruit juice company. You want to choose
a sample size for a quality check on the cans used to package the juice. From
a batch of 30,000 cans, you want a sample size that will allow you to closely
approximate the population parameters for the entire batch. Which sample
size will most likely produce the least variability among different samples?

Answers

Answer:

246.

Step-by-step explanation:

a) The 95% confidence level two-tail confidence interval for the mean value of the key index of this batch is between 98.22 and 99.78

b) The minimum sample size to achieve this is 246.

Step-by-step explanation:

We have that to find our  level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of .

So it is z with a pvalue of , so  

Now, find the margin of error M as such

In which  is the standard deviation of the population(square root of the variance) and n is the size of the sample. So in this question,  

The lower end of the interval is the sample mean subtracted by M. So it is 99 - 0.78 = 98.22

The upper end of the interval is the sample mean added to M. So it is 99 + 0.78 = 99.78.

a) The 95% confidence level two-tail confidence interval for the mean value of the key index of this batch is between 98.22 and 99.78

(b) (5 points) If we want the sampling error to be no greater than 0.5, what is the minimum sample size to achieve this based on the same confidence level with part (a)

We need a sample size of n

n is found when  

Then

Rounding up

The minimum sample size to achieve this is 246.

A circle has a radius of 8 centimeters. The measure of the arc of the
shaded region is 72º. Which is closest to the area of the shaded section
of the circle?
1. 40.2 2. 160 3. 50.3 4. 10.1 ???

Answers

Answer: 10.1

Step-by-step explanation:

I WILL GIVE BRAINLYEST

Answers

Answer:

270 minutes in all

Step-by-step explanation:

First, if we know that Deena spent 45 min painting, and that Clara spent 30 min more, than to find how much Clara painted you do 45 + 30 which equals 75. To find Adam, you do 75 x 2 which = 150.

150 + 75 + 45 = 270

Hope this helps!

Ok so you can work your way back. It says Deena has spent 45 minutes painting and Clara has spent 30 minutes more than Deena. 45+30 is 75. Next it says Adam spent twice as many minutes as Clara and we now know Clara spent 75 minutes. 75 times 2 is 150 minutes.
45+75+150= 270 minutes
(45 for Deena, 75 for Clara, and 150 for Adam)

Which of the following are not true about a square

A.it has no right angles
B.all it’s sides are of equal lengths
C.it has opposite parallel
sides
D.it can be classified as a rectangle

Answers

The answer is D.

Explanation:
Squares have only right angles.
All sides are equal in length.
It has opposite parallel sides.
Squares cannot be classified as rectangles.

Therefore, D is the right answer.

Someone help and plz make sure it’s right :)

Answers

I’m pretty sure it’s it’s obtuse good luck

What is the equation used to find the nth term of the arithmetic sequence:
-8, -5 -2, 1, 4

Answers

Answer:

        aₙ = 3n - 11

Step-by-step explanation:

The equation of the nth term of the arithmetic sequence is: [tex]a_n =a_1+d(n-1)[/tex]

d = -5 - (-8) = - 5 + 8 = 3

a₁ = -8

Therefore:

               [tex]a_n =-8+3(n-1)\\\\a_n =-8+3n-3\\\\a_n =3n-11[/tex]

If
4x + y = 13
- y = 2
then y =

Answers

Answer:

y = 2

Step-by-step explanation:

-y = 2, that means y = opposite of 2, which is -2

Hope that helps! :)

4x + y = 13
- y = 2

y = -2

What is the Radius of a circle with an area of 115

Answers

6.05

Step-by-step explanation:

r=squareroot a/π= square root 115/π = 6.05

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