Convert the equation x2 + 4y2 + 2x + 24y + 21 = 0 into standard form.

Answers

Answer 1

Answer:

(X+1)²+4(y+3)² = (√-20)²

Step-by-step explanation:

The standard form of expressing equation ic;

(x-a)²+(y-b)² = r²

Given the expression

x²+4y²+2x+24y+21 = 0

Collect the like terms

x²+2x + 4y²+24y+21 = 0

Completing the squares

x²+2x +(2/2)² + 4(y²+6y)+21 = 0+(2/2)²

x²+2x +(2/2)² + 4(y²+6y+(6/2)²)+21 = 0+(2/2)²

x²+2x +1 + 4(y²+6y+(3)²)+21 = 0+1

x²+2x +1 + 4(y²+6y+9)+21 = 0+1

x²+2x +1 + 4y²+24y+36+21 = 0+1

x²+2x +1 + 4(y²+6y+9)+21 = 0+1

x²+2x +1 + 4(y+3)²+21 = 0+1

(X+1)²+4(y+3)² = 1 - 21

(X+1)²+4(y+3)² = -20

(X+1)²+4(y+3)² = (√-20)²


Related Questions

Henry takes out a $20,250 student loan to pay for college tuition this year. The interest rate he pays is 6% for 15 years. How much interest will he owe?

Answers

Answer:

$1215 x 15 = $18225 This is over 15 years.

Solve 1/2x times 1/4x-18=6.

Answers

Answer:

The answer is 48

Step-by-step explanation:

Have a nice day

Need help finding the length of AC

Answers

Answer:

I would have to say that the length of AC is 22.5

Which statement correctly describes gravity?

an attractive force that acts between all objects through contact
an attractive force that acts between all objects without contact
a repulsive force that acts between all objects through contact
a repulsive force that acts between all objects without contact

Answers

Answer:

an attractive force that acts between all objects without contact

Step-by-step explanation:

an attractive force that acts between all objects without contact

You are pulled down by gravity when you jump

Answer:

an attractive force that acts between all objects without contact

The force of gravity, first discovered by Isaac Newton, is one of the four fundamental forces. It is a force that is always attractive, and it is exerted between all objects that have mass. Also, the force is exerted even when the two objects are not in contact.

The magnitude of the force of gravity between two objects is given by where

G is the gravitational constant

m1 and m2 are the masses of the two objects

r is the distance between the two objects

Step-by-step explanation:

MRK ME BRAINLIEST PLPZZZZZZZZZZZZZZZZ

help pleass alot of points​

Answers

Answer:

44

Step-by-step explanation:

[tex]11 + 11 + 11 + 11 = 11 * 4 = 44[/tex]

The perimeter of the square is 44 kilometers

A fan oscillates 250* and can be felt from a distance of 4 feet away . To the nearest tenth what area of the room can feel the wind from the fan? Use 3.14 for pi .

Answers

Answer:

[tex]A=256.67ft^2[/tex]

Step-by-step explanation:

From the question we are told that:

Fan oscillates [tex]\theta=250[/tex]

Distance [tex]d=>Raduis\ r=4 feet[/tex]

Since

 [tex]250\textdegree =180\textdegree +70\textdegree[/tex]

Generally the equation for the area A is mathematically given by

 [tex]Area=Area\ of\ semi\ circle\ + area\ of\ 70\textdegree sector[/tex]

 [tex]A=A_{sm}+A_{70\textdegree}[/tex]

Where

 [tex]A_{sm}=\frac{1}{2} \pi r^2[/tex]

 [tex]A_{sm}=\frac{1}{2} 3.14 4^2[/tex]

 [tex]A_{sm}=25.12ft^2[/tex]

 [tex]A_{70\textdegree}=\frac{1}{2}r^2 \frac{70\textdegree}{360\textdegree}[/tex]

 [tex]A_{70\textdegree}=\frac{1}{2}*4^2* \frac{70\textdegree}{360\textdegree}[/tex]

 [tex]A_{70\textdegree}=1.55ft^2[/tex]

Therefore the area A is given as

 [tex]A=A_{sm}+A_{70\textdegree}[/tex]

 [tex]A=25.12ft^2+1.55ft^2[/tex]

 [tex]A=256.67ft^2[/tex]

use the figure below to answer the question

Answers

Answer:

Sin(Ф) = Opposite / Hypotenuse

We know that Opposite = 6, and

Hypotenuse = 3/4 or 0.75

So,

Sin(Ф) = 6 / 0.75

Sin(Ф) = 8

So the value of sin of Ф would be 8

Hope this helps!

What is the distance between the points (7, -3) and (-5, 6)?

Answers

Answer:

The distance between the two points is: √145≈12.04 to 2 decimal places.

Step-by-step explanation:

If using a grid it will make the answer easier to solve.

Answer:

21units

12 units + 9 units

Reduce each of the following fractions to its simplest form. a. 12⁄18 b. 48⁄54 c. 27⁄90 d. 63⁄77 e. 24⁄32 f. 73⁄365

Answers

Answer: A. 2/3 B. 8/9 C. 3/10 D. 9/11 E. 3/4 F. 1/5

Step-by-step explanation:

What is the overlap of Data Set 1 and Data Set 2?


high

moderate

low

none

Answers

Answer: Low

The overlap of data set 1 and data set 2

Tiara, a quality assurance inspector at a chocolate factory, checks for product quality using a random sample of 18 pieces of chocolate from a batch of 60, wity 17 white chocolate and 43 dark chocolates. Let p be the proportion of white chocolates in the sample. Part A: Is the 10% condition met in thjs case? Justify your answer. Part B: Is the Normal condition met in this case? Justify your answer.​

Answers

Answer:

Part A

The 10% rule is not met

Part B

The normal condition is not met

Step-by-step explanation:

The given data of the pieces of chocolate are;

The number of chocolates in the sample, n = 18

The number of white chocolate in the batch = 17

The number of dark chocolates in the batch = 43

Given that [tex]\hat p[/tex] is the proportion of white chocolates in the sample, we have;

The proportion of white chocolates in the batch, p = 17/60 = 0.28[tex]\overline 3[/tex]

Part A

The 10% condition states that the size of the sample should be less than or equal to 10% of the population because taking samples without replacing them does not result in independent Bernoulli trials

The given sample size, n = 18, which is 18/60×100 = 30% > 10% of the batch, therefore, the 10% rule is not met in the present situation

Part B

The normal approximation can be assumed when we have;

n·p > 10 and n·p·(1 - p) > 10

By plugging in the values for 'n' and 'p', we have;

p = 0.28[tex]\overline 3[/tex] = 17/60

n·p = 18 × 17/60 = 5.1 < 10

n·p·(1 - p) = 18 × 17/60 × (1 - 17/60) = 3.655 < 10

Therefore the normal condition is not met.

Grace’s garden is shown below. She is going to buy bags of soil that cover 75 square feet each. How many bags of soil will she need for her entire garden? Use 3.14 for pi.


A. 4 bags

B. 5 bags

C. 6 bags

D. 7 bags

Answers

Answer: C. 6 bags

Step-by-step explanation:

To solve this, you need to calculate the area of every shape in the garden and then sum them up.

Semi circle:

Area of semi-circle = (π * radius²) / 2

Radius = Diameter/ 2 = 18/2 = 9 feet

Area = (3.14 * 9²) / 2

= 127.17 ft²

Rectangle:

= Length * Width

= 18 * 8

= 144 ft²

Triangle

= 1/2 * base * height

= 1/2 * 18 * 18

= 162 ft²

Added up:

= 127.17 + 144 + 162

= 427.17 ft²

If each bag covers 75 ft² each, the number of bags needed is:

= Area to cover / Coverage per bag

= 427.17 / 75

= 5.7

= 6 bags

ASAP someone please help. Given the following angle measurements for a triangle, find the remaining angle.
a. 53, 58
b. 28, 47
c. 65, 25

Answers

Answer:

c

Step-by-step explanation:

Ricky and Lucy are 40 miles apart on bicycles heading towards each other on the same road. Ricky bicycles at 8 mph and Lucy rides at 6 mph. In how many hours will they meet?

Answers

Answer:

2.86 hours

Step-by-step explanation:

Ricky and Lucy are 40 miles apart on bicycles heading towards each other on the same road. Ricky bicycles at 8 mph and Lucy rides at 6 mph. In how many hours will they meet?

Speed = Distance/time

Distance = Speed × time

t = ?

Hence,

8mph ×t + 6 mph × t = 40 miles

8t + 6 t = 40 miles

14t = 40 miles

t = 40/14

t = 2.86 hours

They will meet in 2.86 hours

a day in the month of january is randomly selected. what is the probability of selecting a prime number?

Answers

Answer:

70 percent susheeiiesoosos

PLEASE I NEED THE ANSWER IN THE NEXT MINUTE

Answers

Answer:

Step-by-step explanation:

A

Answer:

96

Step-by-step explanation:

:)

find the area of the irregular figure. PLEASE!!
The sides are: 3 in, 4 in, 4 in, 5 in, 7 in, 9 in
geometry

Answers

Answer:

A = [84]in^2

Step-by-step explanation:

5 x 3 = 15

4 x 2 = 16

9 + 4 = 13 x 4 = 52

52 + 15 + 16 = 84in

Find the missing sign.
Solve for X

Answers

Answer:

x = 17.9

Step-by-step explanation:

sin 42° = 12/x

x = 12/sin 42°

x = 17.9

Answer:

17.9

Step-by-step explanation:

> sin 42° = 12/x

> x = 12/ sin 42°

> x = 17.9

Classify the polynomial.

2x^5+x^2-2x+4

a. quintic polynomial
b. cubic polynomial
c. quadratic monomial

Answers

It would probably be A

I don't know how to do this please help me!
Find the measure of an angle between 0 degrees and 360 degrees coterminal with an angle of -244 degrees in a standard position.

Answers

Answer:

to find the equivalent positive angle of a negative angle, just add 360 to it until it becomes positive and is between 0 and 360 degrees. -244 + 360 = 116.

Step-by-step explanation:

9272827292738hellp plssss

Answers

Answer: B. Each month, Zohal read more books than the month before

Step-by-step explanation: The bars went up each month getting higher and higher. Hope this helps!!

Answer:

B.

is the answer

hope it helprd

Please help! I'll give you brainliest if you get it right!
Write the piecewise function for the graph.

Answers

Answer:

In the picture

Step-by-step explanation:

First, find a function for each line.

-2x - 2 fits the green line because for every x value, y is -2(x) - 2.

2x + 1 fits the red line because for every x value y is 2(x) + 1.

You also need to include "if." -2x -2 if x < 0.

For the red line, the dot is closed so if x ≥ 0.

i need help please help asap

Answers

Answer:

Try 11

Step-by-step explanation:

11 -33+63-38=3

Choose all expressions that are equivalent to
to 5/7

Answers

Answer:

C,D,E are equivalent to 5/7

Ms. Powell bought 12 cookies for $4.00 and Ms. Malley bought 8
cookies for $3.50. How much did each person pay for a cookie? And who
had the better deal?

Answers

Answer:

Ms. Powell paid around 33 cents for each cookie

Ms. Malley paid around 43 cents for each cookie

Ms. Powell had the better deal

Step-by-step explanation:

Divide the amount paid with the amount of cookies bought so 4 ÷ 12 = 0.3333... and 3.50 ÷ 0.4375...

I hope this helped!

1) Approximately ¢33 per cookie

2) Approximately ¢29 per cookie

Ms. Powell had a better deal

Please help and don’t put a random answer.

Answers

Answer:

The answer is 13/4

Step-by-step explanation:

I divides and cross miltiplied.

Which equation represents the line that is perpendicular to and passes through (-6,-9)?
A.
x = -9
B.
x = -6
C.
y = -9
D.
y = -4

Answers

Answer:

y = -9

Step-by-step explanation:

Complete question;

Which equation represents the line y = 1/4 that is perpendicular to and passes through (-6,-9)?

The equation of the line in point slope form is y-y0 = m(x-x0)

Given the equation y = 1/4, the slope of the line is zero

Substitute the slope and the point into the formula;

y -(-9) = 0(x-(-6)

y + 9 = 0

y = -9

Hence the required equation is y = -9

Answer:

C.y = -9

Step-by-step explanation:

You start at (9, 3). You move right 1 unit. Where do you end?

Answers

Answer:

(10, 3)

Step-by-step explanation:

ressions, Equations, and Relationships - Readines
What is the approximate value of x in this equation?
6x + 14 = 7 - X

Answers

Answer:

x=-3

Step-by-step explanation:

HELP , TIMES ALMOST UP!!!!!!

Answers

Answer:

0.8660254 or √3/2

Step-by-step explanation:

Answer:

√3/2

Hope this helps

Other Questions
What protects the continent of Antarctica from military activity and mining?a. Its government has decided to protect it.b. Explorers and scientists prohibit it.c. An international treaty Help me pls i will love you forever lol GIVING BRAINLIEST AND 30 pointsIn the lessons in this unit, you have seen how political leaders introduced a variety of plans to bring about Reconstructionin the United States. And you've seen some of the reactions that those plans provoked. In this activity, you'll explore howthe actions and challenges of this period affected these three groups in particular: Northerners, people freed fromslavery, and many white Southerners.Use these sources or ones you find on your own learn more about Reconstruction and the people most affected. Skimthe longer articles for the parts about the three identified groups. You can also refer to the lessons in this unit foradditional help.Reconstruction Era eReconstructionReconstruction after the Civil War eThe Old SouthUsing these sources, imagine what it would have been like to be a member of these three groups during Reconstruction.What would have been their anxieties, hopes, disappointments, sympathies, and obstacles? Write a brief response ofabout 200 to 250 words for each group. Which type of physical activity is being performed in the picture?A. cardiovascularB. strength trainingC. flexibility D. cross training What is the solution to the system of equation? Write the x-value or x-coordinate.7x+2y=248x+2y=30What is the solution to the system of equation in number 1? Write the y-value or the y- coordinate. why did the piligrims leave Europe? Two things that increase a populatiom The fossil record provides evidence thatA. Fossils cannot be dated.B. All species were formed during Earths formation and have changed little since then.C. The fossilized species have no connection to todays speciesD. Older species have rise to more recent species. 13. The Sermon on the Mount permits divorce in the case of physical abuse.TrueFalse Which people that have been affected by racism the most and how A 10 kg medicine ball is thrown at a velocity of 15 km/hr ( m/s) to a 50 kg skater who isat rest on the ice. The skater catches the ball and subsequently slides with the ball across theice. From a sample tray, 4 of the last 10 cake samples chosen were strawberry. Based on past data, of the next 20 samples taken, how many should you expect to be pieces of strawberry cake? Find the volume of this.Show work. A PROSPECTIVE BUYER SIGNS AN OFFER TO PURCHASE A RESIDENTIAL PROPERTY. ALL THE FOLLOWING CIRCUMSTANCES WOULD AUTTOMATICALLY TERMINATE THE OFFER EXCEPT Which of the following is NOT a recommended way of writing ratios? O Two to one O 2-1 O 2:1 O 2/1 1. What are business services, and where are they located in central business districts and suburbs? 2. What are consumer services, and where are they located in central business districts and suburbs? Which statement is true in comparison to a weak acid, a strong acid has a larger ph than weak acids is more concentrated than we gases strong acids produced less H plus ions is mostly H plus ions in solution ecrivez une composition d'environ 200 more sux lui amie In an alternation of generations lifecycle, the gametophyte is part of whichgeneration? Please hurry! This is timed! When Eleanor Roosevelt says, "There is such a thing as going through the world blindfolded. I have known people who were quite unconscious of the play of the sun and shadow on the hills, she means peopleA. can fail to enjoy the sunshineB. should take off their blindfolds to see the worldC. can fail to recognize the beauty in the worldD. never notice the obvious until it is too late