Chords AB and CD intersect as sho below. Find the length of CD. Please answer with work, and please, no links.​

Chords AB And CD Intersect As Sho Below. Find The Length Of CD. Please Answer With Work, And Please,

Answers

Answer 1

Answer:

39

Step-by-step explanation:

The chords are equal to eachother. First multiply their divided lengths together:

9(3x-9)=21(x+1)

27x-81=21x+21

x=17

CD= 21+x+1

21+17+1=39

CD= 39

Answer 2

Chords AB and CD intersect as shown in the given figure. The chords are equal to each other. The length of CD is 17.

What is the relation between the line perpendicular to the chord from the center of the circle?

If the considered circle has center O and chord AB, then if there is perpendicular from O to AB at point C, then that point C is bisecting(dividing into two equal parts) the line segment AB.

Or

|AC| = |CB|

Chords AB and CD intersect as shown below.

The chords are equal to each other.

Therefore,

[tex]9(3x-9)=21(x+1)\\27x - 81 = 21x + 21\\\\27x - 21x= 81 + 21\\\\x= 17[/tex]

CD = 21 + x + 1

21 + 17 + 1 = 39

CD = 39

Learn more about the chord of a circle here:

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Related Questions

Four friends tried to rewrite the expression 24 + 40. Who wrote it correctly: Chet 8(4 + 5), Mila 4(6 + 8), Sue 4(6 + 9) or Ryder 8(3 + 5). *

Answers

Answer:

Ryder 8(3 + 5)

Step-by-step explanation:

Given expression:

24 + 40

Each friend wrote:

Chet 8(4 + 5)

= 32 + 40

Wrong

Mila 4(6 + 8)

= 24 + 32

Wrong

Sue 4(6 + 9)

= 24 + 36

Wrong

Ryder 8(3 + 5)

= 24 + 40

Correct

Of the four friends, only Ryder wrote the expression correctly

Ryder 8(3 + 5)

Find the exact solution to the equation. 5^(6-2x) = 25

Answers

Answer:

x = 2

Step-by-step explanation:

Note that 25 = 5² , then

[tex]5^{(6-2x)}[/tex] = 5²

Since the bases on both sides are 5 then equate the exponents

6 - 2x = 2 ( subtract 6 from both sides )

- 2x = - 4 ( divide both sides by - 2 )

x = 2

Simone used 2 1/3 kilograms of flour to bake a cake . She used 4/5 kilograms of flour more to bake a second cake. How much flour did she use to bake the second cake?​

Answers

Answer:

3.13 kilograms used for the second cake

Step-by-step explanation:

because the fractions have different denominators you have to multiply the denominators together to figure out what to change them too. but instead you can just figure out what the decimal for each is. 1/3 is 0.33, and 4/5 is 0.80. all you do is add these together to get 1.13. so now all you do is add 2+1.13 to get 3.13.

Mr. Eng brought different kinds of fruit drinks to his class picnic.
Fruit Drinks
16
14
12
10
1.11,
.
Apple
Grape
Peach
Lemon Orange
Kind of Drink
How many more orange drinks than apple and grape drinks did Mr. Eng bring?
O A 4
OB. 5
O C.9
O D.11
OE.15

Answers

Answer:

A

Step-by-step explanation:

Jacob wrote the number 3.555x10.5 in standard form. What number did he write?

Answers

Answer:

37.3275

Step-by-step explanation:

I just put it on the calculator :)))))

Which of the following trigonometric ratios are correct?

Answers

Hi there! In this problem, you should have the knowledge of three basic Trigonometric Ratio.

sinA = opposite/hypotenusecosA = adjacent/hypotenusetanA = opposite/adjacent

Now that we know three basic ratio. Let's check each choices!

sin50° = d/c

This choice is wrong because we focus on the 50° angle. When we focus on 50°, sin50° should be d/x and not d/c.

sin50° = c/x

This choice is also wrong because in ratio, it's cos50° that adjacent/hypotenuse.

tan50° = d/c

This choice is correct! As ratio states, tanA = opposite/adjacent.

tan50° = x/c

This choice is wrong. x/c is a reciprocal of cosine which is 1/cos. We call the reciprocal of cosine as secant or sec in short.

cos50° = x/d

This choice is wrong as x/d is a reciprocal of sine which is 1/sin. We call the reciprocal of sine as cosecant or cosec/csc in short.

cos50° = c/x

This choice is right by the ratio. Nothing really much to explain since we follow by ratio that is defined.

Answer

tan50° = d/ccos50° = c/x

Questions can be asked through comment.

Furthermore, tan also has its reciprocal form itself which is called cotangent also known as cot in short.

Hope this helps, and Happy Learning! :)

The figure above shows a store’s supply-demand graph for coffee makers. If the store sells $375 worth of coffee makers, which of the following is a valid possible price for them? a. $15 b. $25 c. $40 d. $55

Answers

answer:
b. $25

step-by-step explanation:
$375 / 15
25 coffee makers
$375 / 25
15 coffee makers
$375 / 40
9.375 coffee makers which makes no sense
$375 / 55
6.81818182 coffee makers which also makes no sense
coffee makers are usually over $20 so b makes the most sense here

The price of $25 is a valid possible price for coffee makers

What is a supply demand graph?

A supply demand graph is a graph that shows the relationship between the supply and the demand of an item

The worth of the coffee is given as:

Worth = $375

The valid price of the coffee is calculated using:

Price = Worth/n

Where n represents the number of unit coffee

Make n the subject.

So, we have:

n = Worth/Price

This gives

n = 375/Price

When Price = 15, we have:

n = 375/15 = 25

When Price = 25, we have:

n = 375/25 = 15

When Price = 40, we have:

n = 375/40 = 9.375

When Price = 55, we have:

n = 375/55 = 6.818

Ignore the decimal results

So, we have

n = 375/15 = 25

n = 375/25 = 15

At a price of $25, the coffee maker sells less coffee than at a price of $15.

This means that they sell less to earn more

Hence, the price of $25 is a valid possible price for them

Read more about supply demand graph at:

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laura has a 3-digit combination lock on her briefcase and has forgtten the combination. If she knows that the first digit is a 3, and the second digit is a prime, how many numbers must Laura try before the lock is sure to open?

Answers

Answer:

Laura needs to try 36 more times before the lock is sure to open.

Step-by-step explanation:

Alright, with a three digit lock, there are 9 possible numbers for each digit:

1, 2, 3, 4, 5, 6, 7, 8, and 9.

Since the first one is 3, lets move onto the second digit, which is prime.

Of the numbers between 1-9,

2, 3, 5, and 7 are prime.

With the last digit, it can be any number 1-9.

With all of this, there are 4 combos left for the second digit then 9 combos for the third digit. Therefore, there would be 36 possible combinations as 4 * 9 =36.

What is the total cost of buying 2 pounds of nails, 4 pounds of washers, and 3 pounds of bolts?. The price of nails is $1.30/lb, the price of washers is $0.80/lb, and the price of bolts is $2.50/lb.

Answers

Answer: $13.30

Step-by-step explanation:

price of nails = $1.30/lb

price of washers = $0.80/lb

price of bolts = $2.50/lb

The total cost of buying 2 pounds of nails, 4 pounds of washers, and 3 pounds of bolts will be:

= (2 × $1.30) + (4 × $0.80) + (3 × $2.50)

= $2.60 + $3.20 + $7.50

= $13.30

The total cost is $13.30

Larry and 3 friends went to a basketball game. They
paid $5.00 for each of their tickets and each bought a
bag of candy. If they spent a total of $28, how much
was each bag of candy?

Answers

5x3= 15
The tickets were $15 in total
28-15= 13
13:3= 4’3
Each bag of candy was $4’3

Answer:5x3= 15

The tickets were $15 in total

28-15= 13

13:3= 4’3

Each bag of candy was $4’3

Step-by-step explanation:

Please someone just explain this to me right I will give you brainlest if you pit down the explanation on how you got that.

Answers

Answer: w = 2

Explanation: To find the slope of a line, we use the formula y = mx + b, where m is the slope and b is the y-intercept. Since there is a variable, w, we can use this formula: m = 7 + w.

We know that m, or the slope of the line, is 9. If we substitute the value of 9 into that equation... we should get 9 = 7 + w.

It's simple mathematics from here.

7 plus what is 9?? 2. That's your answer. If you need help with slope-intercept and rate of change WITHOUT variables (besides x and y, of course), feel free to let me know!!

Where did I get that 7?

Usually, we use the slope formula to find the slope of a line when we know two points on the line. But if we already know the slope of a line, we can use the slope formula to find a missing coordinate of a point on the line.

We will be using this formula: y - y₂ = m(x - x₁)

This equation is useful when we know:

one complete coordinate point (x₁, y₁)and the slope of the line (m)

and we want to find the other point.

(x₁, y₁) is the known point. In our example, it's (-7,-7).

(x, y), sometimes written as (x₂,y₂), is (-6, w) and represents the missing coordinate.

EXAMPLE (SEE IMAGE):

slope (m) = 3

y − y1 = m(x − x1)

We know m, and also know that (x1, y1) = (3,2), and so we have:

y − 2 = 3(x − 3)

That is a perfectly good answer, but we can simplify it a little:

y − 2 = 3x − 9

y = 3x − 9 + 2

y = 3x − 7

EXAMPLE IMAGE:

Simplify (2.2 x 10')= (1 104) and write the
answer in scientific notation.
a. 2.2 x 10°
b. 22
c. 2.2 x 1011
d. 2.2 x 10?

Answers

Answer:

2.2 × [tex]10^{11}[/tex]

Step-by-step explanation:

2.2 × [tex]10^{7}[/tex] + 1 × [tex]10^{4}[/tex]

2.2 × 1 = 2.2

7 + 4 = 11

A dolphin swam 712 miles in 38 hour. What was its average speed in miles per hour (mph)?

Answers

To find miles per hour you divide the number of miles by the number of hours

(7 1/2)/(3/8) = (15/2)(8/3) = 20 mph

what is the median for this set of numbers 10,9,23,68,70,4,12,4​

Answers

Answer:

11

Step-by-step explanation:

Also u can search up mean, median, mode calculator and type in any numbers u want and it will give u the mean, median, mode, range and more

Write the number in scientific notation.
5,430,000 =

answer pls

Answers

Answer:

5.43 × 10⁶

Step-by-step explanation:

i hope this helps

which one is it?

I'll mark brainliest if correct

Answers

Answer:

B

Step-by-step explanation:

Mark me as brainllest

Gloria placed 2 apples into each of 14 boxes. Let a represent the total number of apples she had. Which of the following best represents this situation?


A

B

C

D

Answers

Answer is A. Hope it’s correct

Answer:

A. a=14×2

Step-by-step explanation:

Since there are 2 apples per box, you just need to multiply to get your answer which would be 28.

6. What is the measure of x? B (4x - 1) (2x9) ) 88" (3x +19) 110° E A-45 B.5 C.5 D. 35​

Answers

it would be D :) here’s a picture of how i did it

Would you rather win the lottery or live twice as long?

Answers

Answer:

win the lotto

Step-by-step explanation:

Answer:

i d k

Step-by-step explanation:

Plz answer i will give brainliest!!!!

Answers

It most likely has a 0.3 chance

I need help with
(6 + 4)² ÷ 4 – 8 + 6 · 8 and 16 + 3(8 + 2) + 6² ÷ 9
show work please!

Answers

better do gemdas sis

Amal designed a silver necklace pendant in the shape of a cone. The slant height of the cone is 5 millimeters, and the radius of the cone is 3 millimeters. What is the volume of the silver pendant, rounded to the nearest tenth? Use 3.14 for π

O 37.7 mm³
O 113.0 mm³
O 47.1 mm³
O 141.3 mm³

Answers

Answer:

i dont know exacly but i know its not 141.3

Step-by-step explanation:

i put that answer and got it wrong

Answer:

37.7

Step-by-step explanation:

estimate 12 8/9 - 10 1/6

Answers

Answer: 49/18

Step-by-step explanation:

Find the area of the following triangle: 17 9 14 10 Note: Figure not to scale.​

Answers

Jejkskskdjjdjshdbdbsnnsjskskksk 13455

If x=17 which equations is true?
A. 2(x-3)=31
B. 3(25-x)=24
C. 3(15-x)=6
D. 2x-3=28

Answers

it’s the equation B.

HELPPPPPPPPPPPP THIS IS A MEGA TEST Felicia pours 3/4 of a 2 1/2-liter bottle of chlorine solution into a swimming pool. Then, she measures out the liter of the remaining solution to use to clean the pool filter. How much chlorine solution is left in the bottle?

Answers

Answer:

1/4 L

Step-by-step explanation:

2 1/2=10/4  10/4*3/4=30/16= 1 7/8

1 7/8=15/8        10/4*2=20/8          20/8-15/8=5/8

5/8-3/8=2/8 or 1/4 L

Answer: 1/4 L

In bottle 1/4 of chlorine solution is left in bottle.

What is an expression?

Expression in math is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Given that;

Felicia pours 3/4 of a 2 1/2-liter bottle of chlorine solution into a swimming pool.

And, then she measures out 3/8 liters of the remaining solution to use to clean the pool filter.

Now,

Chlorine solution in bottle = 2 1/2 × ( 1 - 3/4 ) - 3/8

                                        = 5 / 2 × 1/4 - 3/8

                                        = 5 / 8 - 2 / 8

                                        = 1 / 4

Thus, In bottle 1/4 of chlorine solution is left in bottle.

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The complete question is this;

Felicia pours 3/4 of a 2 1/2-liter bottle of chlorine solution into a swimming pool then she measures out 3/8 liters of the remaining solution to use to clean the pool filter how much chlorine solution is left in the bottle?

Does anyone wanna trade in adopt me Imao or have like sum really good pets yall wanna give me cuz I’m amazing tehe anyways I’m u wanna my user is Matrix0425

Answers

Answer:

ill awnswer 4 that person that wants brainliest

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

can someone help me

Answers

Answer:

1,138 is the volume but I don't know how to find the surface area

The volume is 1,138. Hope this helps

A school bus has 25 seats, with 5 rows of 5 seats. 10 students from 2nd grade and 5 students from 1st grade travel on the bus. How many ways can the students be seated if the 2nd graders have to sit in the first two rows?

Answers

Answer:

(Answer in attachment, explanation below)

Step-by-step explanation:

The answer is B. 5P5 x 20P15.

This is because to make the second grade students to sit in the first row we have 5 seats and 5 students so we will permute the 5 students to those 5 seats. So 5P5.

Now we are left with 20 seats and 15 first grade students so we can simply permute those 15 students into those 20 seats. So 20P15.

Finally using the counting rule principle we will multiply both of these so 5P5 x 20P15.

No. of students from first grade = 15

No. of students from second grade = 5

There are 5 rows of seats

Each row contains 5 seats

Total seats = 25

No. of ways for second-grade students occupy the first row(i.e first 5 seats) =  

Remaining seats = 20

No. of students from first grade = 15

So, No. of ways for first-grade students occupy remaining seats =  

So,  No. of ways for the students can be seated if all of the second-grade students occupy the first row =  

So, Option B is true

Hence No. of ways for the students can be seated if all of the second-grade students occupy the first row is

y = 4x - 2
y = 4x + 5

Answers

No solution is the correct answer :/
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