Which of the following equations listed below has a radius of 3?

O A) x^2 + y^2 + 12x - 20y+ 132 = 0
-
O B) x^2 + y^2 + 12x - 20y + 55 = 0
-
O C) x^2 + y^2 - 12x+ 20y + 127 = 0
-
O D) x^2 + y^2 – 20x – 16y + 155 = 0

Answers

Answer 1

Answer:

C.

Step-by-step explanation:

WE need to convert the given equations  into the standard form

(x - a)^2 + (y - b)^2 = r^2 where r = the radius.

x^2 + y^2 + 12x - 20y+ 132 = 0

(x + 6)^2 - 36 + (y - 10)^2 - 100 = -132

(x + 6)^2 + (y - 10)^2 = -132 + 36 + 100 = 4

giving a radius of 2

x^2 + y^2 + 12x - 20y + 55 = 0

will give a right hand side of -55 + 36 + 100 = 81  giving radius 9.

x^2 + y^2 - 12x+ 20y + 127 = 0

- gives right hand side of -127 + 36 + 100 = 9 giving a radius of 3.

Answer 2

Answer:

The answer is C I hope this helps


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A baker used 3kg of baking powder every for every 12kg of flour. if he used 180kg of flour for the Christmas season. how many kg of baking powder did he use in all. help now, please

Answers

Answer:

Step-by-step explanation:

12 kg of flour for 3 kg of baking powder

so 1 kg of flour = 3/12 or 1/4 of baking powder

180 kg of flour = [tex]\frac{1}{4}[/tex] × 180 kg of baking powder

= 45 kg of baking powder for 180 kg of flour

please give me a brainliest answer

Step-by-step explanation:

Step-by-step explanation:

12 kg of flour for 3 kg of baking powder

so 1 kg of flour = 3/12 or 1/4 of baking powder

180 kg of flour = 14\frac{1}{4}

4

1

× 180 kg of baking powder

= 45 kg of baking powder for 180 kg of flour

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The queen marys 2’d height above water is about the same as a 14 story building, what is the queen mary twos height above water, pls help this is due today

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Answer: Length 1,132 ft

Step-by-step explanation: Im not sure if this is the one your talking about but here.

Eloise practiced piano for 2/5 of an hour. Sarah practiced piano for 3/4 of an hour.
How much longer did Sarah practice than Eloise?

Answers

Answer:

21 min longer

Step-by-step explanation:

For Eloise, we need to know how much 1/5 of an hour is in min. So divide 60 by 5 and we get 12min. So 2/5 of an hour is 2x12, giving us 24 min.

For Sahrah, we need to know how much 1/4 of an hour is in min. So divide 60 by 4 and we get 15min. So 3/4 of an hour is 3x15, giving is 45 min.

now that we know how long they practiced, we find the difference by subtracting. 45-24 = 21

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Answer:

ikaw mag sagut nyan tiba may utak ka? Tanga kaya mo na yan

Step-by-step explanation:

She's imperfect but she tries

She is good but she lies

She is hard on herself

She is broken and won't ask for help

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What is the domain of the function shown in the graph?

Answers

The domain of the function from the graph.

{10, 20, 40, 80}.

Option B is the correct answer.

What is a function?

function is a relationship between inputs where each input is related to exactly one output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

The coordinates from the graph:

(1, 10), (2, 20), (3, 40), (4, 80)

The domain of the function from the graph.

= 10, 20, 40, 80


Thus,

From the graph, the domain of the function

{10, 20, 40, 80}.

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Answers

Answer:

Step-by-step explanation:

[tex]\dfrac{x}{2}=\dfrac{y}{3}\\\\[/tex]

Cross multiply,

3x = 2y    ------------(I)

[tex]\dfrac{y}{4}=\dfrac{z}{4}\\\\4*\dfrac{y}{4}=\dfrac{z}{4}*4\\\\y=z[/tex]

y = z --------------(II)

Plugin y =z in (I)

3x = 2z

3x/2 = z  ----------------(III)

x + 2y - z = 10

From (I) and (III)

[tex]x + 3x - \dfrac{3x}{2}=10\\\\4x - \dfrac{3x}{2}=10\\\\Multiply \ the \ entire \ equation \ by \ 2\\\\2*4x - 2*\dfrac{3x}{2}=10*2\\\\8x - 3x = 20\\\\5x = 20[/tex]

Divide both sides by 5

x = 20/5

x = 4

Plugin x = 4 in (I)

3*4=2y

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y  = 6

z = y

z = 6

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Answer:

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Conner walked 10 miles in 5 hours. What was his walking rate in miles per hour?

Answers

Answer:

Step-by-step explanation:

Hi there!

According to the question;

Distance (d)= 10 miles

Time (t) = 5 hours

Now;

Rate = [tex]\frac{distance}{time}[/tex]

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Therefore, the rate of his walking rate in miles per hour is 2miles per hour.

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Answer:

1-*8364464737353=kgkdtyry

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Can someone solve the whole thing for me please it isnt a test its an online assignment and ill give you brainliest if you solve all of them correctly

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Answer: do you have a email so i can send it to you??

Step-by-step explanation:

if a dog eats 20\21kilograms of food per day. How many kilograms will the dog it in the month of august​

Answers

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

if a dog eats 20\21kilograms of food per day. How many kilograms will the dog it in the month of august

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Azim wants to order school spirit t-shirts for the fundraising club. Company R charges a $70 screen setup fee plus $11.25 per t-shirt. Company S charges a $35 screen setup fee plus $14.75 per t-shirt. What equation can determine the number of t-shirts, x, that need to be ordered for the total cost of Company R to equal the total cost of Company S?

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Answer:

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Step-by-step explanation:

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Answers

Answer:

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Answer:

ax+by=c so no

Step-by-step explanation:

During the summer, Hector does yard work, and Geri babysits.To show their earnings, Hector makes a graph, and Geri makes a table. Which statement is true?

Answers

Answer:

Step-by-step explanation:

$6.59

Answer:

Hector earns $6.50 more per hour than Geri.

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Step-by-step explanation:exam

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Answers

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Step-by-step explanation:

y intercept is (0,4)

the reason being the equation is y = 1/3x + 4.

A game spinner has 8 sections, 3 red, 1 blue, 2 yellow, and 2 green. What is the probability of not spinning a green?

Answers

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3/4

Step-by-step explanation:

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Help me please help I will give you 13 point because this is due help me please

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Answer:

Expression 1: 16÷8 has the greatest value.

Step-by-step explanation:

16÷8 =2

whereas,

0.16÷8= 0.02

1.6÷8= 0.2

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Answer:

4,3 becomes 0,0 after the changes

Answer:

32

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28 29 30

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Answer:

Step-by-step explanation:

Greatest common factor (GCF) of 22 and 44 is 22.

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It will be the oval, yw :)

15 cm
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9.9 cm
12 cm

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Find volume

Answers

Step-by-step explanation:

The volume = 15 × 4.2 × 9.9 = 623.7

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0.02349 in standard form to 3 significant figure is?​

Answers

Answer:

I believe that would be 0.0235. I hope this helps you! :)

Answer:

0.0235

Step-by-step explanation:

dfrac{2349}{100000}

Round to the required significant figure: 0.0235

What type of property is 3x•2y=3•2•x•y

Answers

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Andre is paid $12 per hour at his caddying job and $9.50 per hour working at a local fast food restaurant. He would like to keep both jobs and earn at least $275.00 a week, but he can work no more than 25 hours. If x represents the number of hours Andre works at his caddying job and y represents the number of hours he works at the restaurant, which system models this scenario?

Answers

The equation that can be used to model this scenario is 12x + 9.5y ≥ 275 and x + y ≤ 25

Let x represents the number of hours Andre works at his caddying job and y represents the number of hours he works at the restaurant.

Since he earn at least $275.00 a week, hence:

12x + 9.5y ≥ 275   (1)

Also, he can work no more than 25 hours, hence:

x + y ≤ 25   (2)

Therefore the equation that can be used to model this scenario is 12x + 9.5y ≥ 275 and x + y ≤ 25

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The given angles are complementary, therefore:

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Can anyone answer this ASAP!!!

Answers

Step-by-step explanation:

= [tex]\frac{9}{100}[/tex] × [tex]2005[/tex]

= [tex]\frac{3609}{20}[/tex]

= [tex]180\frac{9}{20}[/tex] or 180.45

please give me a brainliest answer

The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The waiting times are shown below.
2
3
7
21
19
8
S
12
6
5
7
2
Find the mean waiting time. Round your answer to one decimal place.
8.0 min
7.2 min
7.5 min
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Answers

The answer is 6.8 minutes

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