Find the center and the radius of the circle with the equation:
x^2 - 2x + y^2 + 4y + 1 = 0

Answers

Answer 1
What are the ^ supposed to mean multiplecation?
Answer 2

Answer:

center:  (1, -2)

radius:  2


Related Questions

Question 7 (2 points)
Given the function rule y = 3x + 11, what is the value of x if y = 57
Hint: Make sure you are substituting for the correct variable!

Answers

Step-by-step explanation:

3x+11=57

subtract 11 from both sides and you will get this

3x=46

Divide by 3

42/3. 3/3

X=14

Answer:

15.333

Step-by-step explanation:

3x+11=57(y)

reverse the question

so:

57-11=46

46 divided by 3=15.333

so x=15.333

hope that helps

thank you

19NBoli

Is urgent If a line passes through the points (2, 7) and (7,9), its slope is
necessary, use the slash (/) to indicate a fraction.
If

Answers

Answer and working out attached. Hope this helps

In the book Chances: risk and odds in Everyday Life, author James Burke says that approximately 57% of the general US population wears glasses or contacts. If two people are chosen at random from the US population, what is the probability that both wear glasses or contacts?

Answers

Answer:

[tex]Pr = 32.49\%[/tex]

Step-by-step explanation:

Given

Let E represents the event of wearing glasses or contacts.

So;

[tex]P(E) =57\%[/tex]

Required

The probability that selected 2 wears glasses

This is calculated as:

[tex]Pr = P(E)\ and\ P(E)[/tex]

[tex]Pr = P(E)\ *\ P(E)[/tex]

[tex]Pr = 57\% * 57\%[/tex]

[tex]Pr = 0.57 * 0.57[/tex]

[tex]Pr = 0.3249[/tex]

[tex]Pr = 32.49\%[/tex]

Find the measure of arc HJ.

Answers

Answer:

98 degrees

Step-by-step explanation:

HJ = (5x - 7)

Because it's a full circle:

61 + 34 + (5x - 7) + (9x - 22) = 360

95 + (14x - 29) = 360

14x = 360 - 95 + 29 = 294

x = 21

HJ = 5x - 7 = 5 * 21 - 7 = 105 - 7 = 98

1 plus 1 please help!!1!!!1

Answers

Answer:

1 plus 1 equals window........

Answer:

I think the answer is orange

Step-by-step explanation:

#Eleventeen

I need help fast!!!
Please

Answers

Answer:

B

Step-by-step explanation:

Please help with this, its do right know

Answers

The answer is A because it can be put into the equation: y= 3x+10

Answer:

A

Step-by-step explanation:

y = 3x + 10

Ur welcome

Find the area of the kite

Answers

4x3=12, 4x8=32, 32+12= 44m is your answer

-12 + ( ) = 9 whats the missing number

Answers

Answer:

The missing number is 21

Step-by-step explanation:

-12 + x = 9

x = 9 + 12

x = 21

Answer:

21

Step-by-step explanation:

let X = ( )

-12 + X = 9

X = 9 + 12

X = 21

please show an actual answer i need help

Answers

Answer:

1. wire is approx. 143.96 ft

2. pole is approx. 106.55 ft

Step-by-step explanation:

Mapping the information on the SOHCAHTOA picture below:

Φ = 46

wire = hypotenuse

adjacent side = 100

CAH is most suitable:

cos 46° = 100/wire => wire = 100/cos 46 ≈ 143.96

pole = opposite side + 3

TOA is most suitable:

tan 46° = (pole-3)/100 => pole = 3 + 100 * tan 46 ≈ 106.55

1. I need some help
2. Answer question step by step
3. Dont Troll or you will be reported​

Answers

Answer:

The shapes are triangles with same base and height

The area of a triangle is the half of the product of the base and height

A = 1/2bh is same for both shapes, so they have same area

What is the value of K?

Answers

The value of K is 10

What sum of 500+1000

Answers

the answer would be 1500

A scientist is studying snakes in the tropical rainforest. She surveys a 1 square mile area. She collects the following data:



Based on the evidence provided, what is the most likely explanation for the red snake population size? (SC.5.N.1.1)


The red snakes are not well hidden, so they are eaten by predators often.


The green snakes and the red snakes are in competition for the same food.


The black snakes prey upon the red snakes during certain times of the year.


The red snakes have been killed off by the poisons they produce.

Answers

Answer:

its c

Step-by-step explanation:

i took the test and got 100 percent

6. Write 12/5 as a percent 100% 120% O140% О111%​

Answers

Answer:

140%

??????????????????????????????????????????????

Evaluate 7 + 5^ 2 . 4. ​

Answers

7+5^2.4

=7+47.591348

=54.591348

Answer: 7 + 5^ 2 . 4= 107 if you evaluate sorry if i am wrong

Step-by-step explanation:

A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n independent trials of the experiment. ​n=10 p=0.15 x<4


The probability of x<4 successes is

Answers

The probability of x<4 successes is P(X <4) = 0.01909.

How to find that a given condition can be modelled by binomial distribution?

Binomial distributions consist of n independent Bernoulli trials.

Bernoulli trials are those trials that end up randomly either on success (with probability p) or on failures( with probability 1- p = q (say))

Suppose we have random variable X pertaining to binomial distribution with parameters n and p, then it is written as

[tex]X \sim B(n,p)[/tex]

The probability that out of n trials, there'd be x successes is given by

[tex]P(X =x) = \: ^nC_xp^x(1-p)^{n-x}[/tex]

In this question:

​n=10 p=0.15 x<4

[tex]P(X =x) = \: ^nC_xp^x(1-p)^{n-x}\\\\\\P(X < 4) = \: ^{10}C_40.15^4(1-0.15)^{10-4}\\\\\\P(X < 4) = \: ^{10}C_40.00050625(0.85)^{6}\\\\\\P(X < 4) = 0.01909[/tex]

So, P(X <4) = 0.01909.

Learn more about binomial distribution here:

https://brainly.com/question/13609688

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PLEASE HELP ME WITH THOSE TWO QUESTIONS
1) How many radians are in a quarter of a circle?

2) How many degrees are in 11π over 6?

Answers

Answer:

1) about 1.57 radians

2) I'm not sure about this one sorry

The lines shown below are parallel. If the green line has a slope of-4, what is
the slope of the red line?
10
A.
B. 4
- 10
-5
5
10
C. -4
O
-5
D.
4
10 -

Answers

I’m pretty sure it’s D

Th slope of red lines is -4

What is parallel lines?

Parallel lines in geometry are coplanar, straight lines that don't cross at any point. In the same three-dimensional space, parallel planes are any planes that never cross. Curves with a predetermined minimum distance between them and no contact or intersection are said to be parallel.

The property of parallel lines states that slope of both lines will b same.

Therefore slope of red lines is -4

To know more about  parallel lines refer to:

https://brainly.com/question/5020723

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pls help me on this !!!

Answers

Abcdefghijklmnopqrstuvwxyz

Answer:

50

Step-by-step explanation:

22 + 18 = 40

90 - 40 = 50

no way you can round it

Emilio’s truck has a gas tank that holds 25 gallons of gas and can travel 400 miles without refilling the gas tank. The graph below shows the amount of gas remaining in Emilio’s truck after he has driven a certain number of miles. Which of the following best describes a reasonable range for this situation

Answers

Answer:

[tex]Range: 0 \le y \le 400[/tex]

Step-by-step explanation:

Given

[tex]Gas = 25 gallons[/tex]

[tex]Distance = 400miles[/tex] --- max

Required

The range of the function

The graph is not given; however, the question can be answered without the graph.

From the question, we understand that the truck can hold up to 25 gallons.

This represents the domain (i.e. from 0 to 25)

When the truck is empty (i.e. no gas in it), the truck cannot move any distance (0 miles).

When the truck is filled up (i.e. 25 gallon), the truck can move up to 400 miles.

This represents the range (i.e. from 0 to 400 miles)

Hence, the range is:

[tex]Range: 0 \le y \le 400[/tex]

work out giving your answer in its simplest form 3/11 times 4/9

Answers

Answer:

Step-by-step explanation:

4x/33

The simplest fraction after calculating 3/11 times 4/9 is 12/99.

Use the concept of fraction defined as:

A fraction is a part of the whole number and a way to split up a number into equal parts. Or, A number which is expressed as a quotient is called a fraction. It can be written in the form of p: q, which is equivalent to p / q.

The given expression is:

3/11 times 4/9

It can be written as,

[tex]\dfrac{3}{11} \times \dfrac{4}{9}[/tex]

Multiply the fractions we get

[tex]\dfrac{3\times 4}{11 \times 9} \\\\\dfrac{12}{99}[/tex]

Since both the numerator and denominator have gcd 1,

Therefore, it is in simplest form.

Hence,

3/11 times 4/9 is equal to 12/99.

To learn more about the fraction visit:

https://brainly.com/question/5454147

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Please only answer if you're 100% sure it's correct. Thank you. (It's pretty easy.)

Answers

2x-7 and 2+7 are the answers

A recipe requires 1/3 cup of milk for each 1/4 cup of water. How many cups of water are needed for each cup of milk?

Answers

3/4 cups of water is needed for one cup of milk

George drove 240 miles to his grandmother's house. The graph below shows the relationship between the distance he traveled and time.


What does the slope of the graph represent?
A.
The total distance he has traveled.
B.
George's speed in minutes per mile.
C.
George's speed in miles per minute.
D.
The total distance he has left to travel.

plz get it right

Answers

Answer:

There is no graph but I can infer that if time is on the x axis it would be C and if distance is on the x axis it would be B

Step-by-step explanation:


PLEASE HELP !! ILL GIVE BRAINLIEST !!

Answers

......................................

Identify the percent of increase from 25 to 65. (To the nearest tenth of a percent)

Answers

Answer:

160%

Step-by-step explanation:

(65 - 25 )/25  x 100% = 160%

PLEASE HELP!!!! THERE IS A PICTURE SUBMITTED!

Answers

Answer:

C: 4 hours

Step-by-step explanation:

Mean = Σxn/n

Σx/n = ((2 × 4) + (3 × 5) + (4 × 6) + (5 × 3) + (6 × 3) + (7 × 0) + (8 × 1))/(4 + 5 + 6 + 3 + 3 + 0 + 1)

Σx/n = 88/22

Σx/n = 4 hours

Which letter is the correct answer and why

Answers

Answer:

Option C

Step-by-step explanation:

Here,

[Taking 'A' = 'a']

[tex]a \: = \: 4\pi {r}^{2} [/tex]

Then for 'r',

[tex] = > 4\pi {r}^{2} = a[/tex]

[tex] = > {r}^{2} = \frac{a}{4\pi} [/tex]

[tex] = > r = \sqrt{\frac{a}{4\pi} }[/tex]

[tex] = > r = \frac{1}{2}\sqrt{ \frac{a}{\pi} } [/tex]

Hence,

Option C is correct .

Find the area of the circle. Round to the nearest tenth. Help me pls I’m stuck

Answers

Answer:

area = 5.3 m²

Step-by-step explanation:

r = d/2 = 2.6/2

r = 1.3

area = πr² = (3.14)(1.3²) = 5.31 m²

The area of a circle is pi r^2

if the diameter is 2.6m

r=d/2

=1.3

area= 22/7*2.6^2

=21.245m^2

Round to the nearest 10th

=20m^2

Answer:20m^2

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