Can you help me please, please answer seriously, no links please​

Can You Help Me Please, Please Answer Seriously, No Links Please

Answers

Answer 1

Answer:

Centre: [tex](\frac{1}{2} ,2)[/tex]

Radius = [tex]2[/tex]

Step-by-step explanation:

General formula for a circle: [tex](x-a)^2+(y-b)^2=r^2[/tex], where [tex]r=[/tex] the radius of the circle and [tex](a,b)[/tex] is the centre of the circle.

To find the centre and radius of the circle we should re-write the given equation in the form of the general formula.

So, put the terms with the same variables together:

[tex]4x^2-4x+4y^2+16y+1=0[/tex]

We can see that there is a common factor of [tex]4[/tex], so let's simplify by dividing by [tex]4[/tex]:

[tex]x^2-x+y^2+4y+\frac{1}{4} =0[/tex]

Here we can get it into the general formula by completing the square.

We do this by turning a quadratic with form [tex]ax^2+bx+c=0[/tex] into the form [tex](x-d)^2-e+c=0[/tex], where d is half of the coefficient of [tex]x[/tex], e is [tex]d^2[/tex] and c is the constant of the quadratic.

So let's re-write the equation of the circle:

[tex](x-\frac{1}{2} )^2-\frac{1}{4} +(y-2)^2-4+\frac{1}{4} =0[/tex]

Simplify: [tex](x-\frac{1}{2} )^2 +(y-2)^2-4} =0[/tex]

Now we can see that it's very similar to the general equation and all we have to do is bring the [tex]4[/tex] over to the right side.

[tex](x-\frac{1}{2} )^2 +(y-2)^2} =4[/tex]

So, now we can find the radius and centre.

[tex](a,b) = (\frac{1}{2} ,2)[/tex]

[tex]r^2=4, r=2[/tex]


Related Questions

Help me plz thank you

Answers

Answer:C

Step-by-step explanation: 100 x 23/100=23

The radius of a circle is 6 feet. What is the circle's circumference? Use 3.14

Answers

I think you divide so 1.91

Today's cafeteria specials at a high school in Westford are a deluxe turkey sandwich and a chef salad. During early lunch, the cafeteria sold 13 turkey sandwiches and 69 chef salads, for a total of $151. During the late lunch, 61 turkey sandwiches and 41 chef salads were sold, for a total of $143. How much does each item cost?

Answers

Answer:

chef salads = $2

turkey sandwiches = $1

Step-by-step explanation:

two equations can be derived from the question

13t + 69c = 151 eqn 1

61t + 41c = 143 eqn 2

t = turkey sandwiches

c = chef salads

multiply equation 1 by 61 and equation 2 by 13

793t + 4209c = 9211 eqn 3

793t + 533c = 1859 eqn 4

subtract equation 4 from 3

7352 = 3676c

c =2

substitute for c in equation 1

13t + 69(2) = 151

13t + 138 = 151

13t = 151 - 138

13t = 13

t = 1

-4x > 500...........................................

Answers

-4x > 500
Divide -4 on both sides.

(Now this is very important, whenever you divide OR multiply an equality by a NEGATIVE number the sign will ALWAYS flip.)

x < -125


~

Greata had a price of cloth that is 9 yards long. She cuts it into prices that are each 1/3 yard long. How many prices of cloth does Greata have now?

Answers

Given:

Length of cloth = 9 yards

Length of pieces = [tex]\dfrac{1}{3}[/tex] yards each

To find:

The number of pieces of cloths after cutting.

Solution:

Let n be the number of required pieces.

Length of each piece is [tex]\dfrac{1}{3}[/tex] yards. So, the length of n pieces is [tex]\dfrac{1}{3}n[/tex] yards.

The length of the whole cloth is 9 yards. So, [tex]\dfrac{1}{3}n[/tex] yards must be equal to 9 yards.

[tex]\dfrac{1}{3}n=9[/tex]

Multiply both sides by 3.

[tex]n=9\times 3[/tex]

[tex]n=27[/tex]

Therefore, the Greata have 27 pieces of cloths.

Find an expression which represents the sum of (-4x + 3) and (8x + 2) in
simplest terms.

Answers

Answer:

4x + 5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

(-4x + 3) + (8x + 2)

Step 2: Simplify

Combine like terms (x):                                                                                    4x + 3 + 2Combine like terms:                                                                                         4x + 5

Which equation gives the volume of the sphere? V = two-thirds (27 pi) V = four-thirds (27) V = two-thirds (27) V = four-third (27 pi)

Answers

Answer:

V = four-third (27 pi)

Step-by-step explanation:

Complete question;

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 27 pi feet cubed.

A sphere with height h and radius r. A cylinder with height h and radius r.

Which equation gives the volume of the sphere?

V = two-thirds (27 pi)

V = four-thirds (27)

V = two-thirds (27)

V = four-third (27 pi)

Volume of the cylinder V = πr²h

If Volume is 27pi feet cubed, hence;

27pi = πr²h

27 = r²h

Since r = h

27 = r³

r = ∛27

r = 3

Since the volume of the sphe4/3πr³re = 4/3πr³

Volume of sphere = 4/3π(27)

Volume of sphere = 4/3(27π)

Hence the correct option is V = four-third (27 pi)


Conditional Probability
photo question helppp

Answers

Answer:

b

Step-by-step explanation:

The right answer is: b
I just took a test with that question and the answer was b

Evaluate the piece wise function for the given values of x by matching the domain values to the range values.

Domain values
x=1 f(x)=

x=3 f(x)=

x=5 f(x)=

x=12 f(x)=

x=15 f(x)=

Answers

Answer:

when

x=1 then f(x)= -5

x=3 then f(x)= 2

x=5 then f(x)= 18

x=12 then f(x)= 15

x=15 then f(x)= 13

Step-by-step explanation:

I'm doing my work that I failed and I only have a week left to do it can you please answer this one it's. -2/3(-1/5)= -1 and 3/4(-2 and 1/7)= 5/8(-2/15)=

Answers

Answer:

7/18na

Step-by-step explanation:

something like dhat

A rainwater collection tank is shaped like a cylinder with a diameter of 4 ft and a height of 6 ft. What is its volume?

Answers

I’m pretty sure the answer is 75.4 ft cubed.

What is the surface area of the rectangular prism shown by net?

Answers

The surface area of a solid object is a measure of the total area that the surface of the object occupies. The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedra (i.e., objects with flat polygonal faces), for which the surface area is the sum of the areas of its faces. Smooth surfaces, such as a sphere, are assigned surface area using their representation as parametric surfaces. This definition of surface area is based on methods of infinitesimal calculus and involves partial derivatives and double integration.

PLEASE HELP!!! I really need help with this question, so if anyone could spare a few min then thank you so much!! ;w;

Answers

Answer:

Hello! answer: -6

Step-by-step explanation:

Hope that helps!

B) Una empresa A gana S/ 42 758,35 en un ano. Si la empresa B gastara S/ 8774,55; tendria tantas ganancias como la primera empresa. Cual es la ganancia total de la empresa B?

Answers

Answer:

Las ganancias totales de la empresa B en dicho año fueron de $51.532,90.

Step-by-step explanation:

Dado que una empresa A gana $42.758,35 en un año, y si la empresa B gastara $8.774,55 tendría tantas ganancias como la primera empresa, para determinar cuál es la ganancia total de la empresa B se debe realizar el siguiente calculo:

Ganancias B - 8.774,55 = 42.758,35

Ganancias B = 42.758,35 + 8.774,55

Ganancias B = 51.532,90

Por lo tanto, las ganancias totales de la empresa B en dicho año fueron de $51.532,90.

help me pleaseeeee. what is this?

Answers

Answer:

104

Step-by-step explanation:

all the angles of a triangle add up to 180, so set up an equation like this:

x+35+41=180

now solve for x

x=180-35-41

x=104

104 degrees a triangle = 180 degrees 104 + 41 + 35 = 180 degrees

My brain is not cut out for this. Plz help lol.

Answers

Answer:

Step-by-step explanation:

It’s c

heyy! i’ll give brainliest please help.

Answers

The answer is a for this question

Find the volume of the rectangular prism
Thank you!!

Answers

Answer:90

Step-by-step explanation: do length x base x height to get your answer

Determine the equation of the circle graphed below. ​

Answers

Answer:

Step-by-step explanation:

the formula for a circle not on the origin is :

(x−h)^2+(y−k)^2=r^2

for the circle shown it looks like the  circle is centered at (1,3)

then h=1 and k=3 and the radius looks to be about 2

(x−1)^2+(y−3)^2=2^2

(x−1)^2+(y−3)^2=4

there is your equation for that circle shown in the graph

The temperature was 70 then dropped to 30 how much is it now?

Answers

Answer:

nmdjskln Jdj

Step-by-step explanation:

Mmh not sure but I think 30

The average of Blanca's first three test scores was 90. The average of her next two test scores was 95. What was the average of Blanca's first five test scores?

Answers

Answer:

92.5

Step-by-step explanation:

you would add 90+95 which is 185 then divide that by 2 to get ur answer

Which is the better buy? 16 cards for $12.20 OR 14 cards for $10.90

Answers

Answer:

The better buy is 16 cards for $12.20 because

Step-by-step explanation:

You need to find the individual price for each card in the packet. So first lets do 16 cards for $12.20, you divide $12.20 by 16 to get the price of one card. 12.2/16=0.7625, or about $0.76. Next we do $10.90 divided by 14, 10.9/14=0.7785, or about $0.78, which means 16 cards for $12.20 is the better buy!

Please help! DO NOT SEND LINK!

Answers

Answer:

Mizuki here to answer!

The correct answer would be 15 inches!

Step-by-step explanation:

7200 ÷ (24 x 20) = 15

Answer:

Hello! answer: 15

Step-by-step explanation:

The volume is 7200 volume is found by doing length × width × height therefore the height is 15 because... 24 × 20 × 15 = 7200 HOPE THAT HELPS!

Please help i would appreciate it alot. PLEASE

Answers

Answer:I think it’s A or B

Step-by-step explanation:

I think b I don’t know

The restaurant manager wants to find how much they are spending for pies and cakes. Last week they payed 204$ for 12 pies and 8 cakes

Answers

Answer: See explanation

Step-by-step explanation:

Your question isn't complete and I couldn't get the exact question online but let's reframe it and solve it.

The restaurant manager wants to find how much they are spending for pies and cakes. Last week they payed 204$ for 12 pies and 8 cakes. This week, they paid $129 for 5 pies and 7 cakes.

Let's say the cost of pies is x

Let's say the cost of cake is y.

We'll then use the information given to make an equation which will be:

Last week they payed 204$ for 12 pies and 8 cakes. This will be:

12x + 8y = 204........ i

This week, they paid $129 or 5 pies and 7 cakes. This will be:

5x + 7y = 129 ........... ii

Therefore,

12x + 8y = 204........ i

5x + 7y = 129 .......... ii

Multiply equation i by 5

Multiply equation ii by 12

60x + 40y = 1020 ....... iii

60x + 84y = 1548 ........ iv

Subtract iii from iv.

44y = 528

y = 528/44

y = 12

The cost of cake is $12.

From equation i,

12x + 8y = 204

12x + 8(12) = 204

12x + 96 = 204

12x = 204 - 96

12x = 108

x = 108/12

x = 9

The cost of pies is $9.

A sports company wants to package a ball with a 1.5-inch radius in sets of two. They have two options: a cylinder or a square prism.The company wants to use the package that has the least amount of wasted space. The company should choose

Answers

Answer:

The Company should choose to get the cylinder packages  ( V = 42.39 in³ )

Step-by-step explanation:

The volume of a cylinder of radius of circumference 1.5 in  and h = 1.5*4

h  =  6 in   is:

V(c)  =  π *r²*h   =  π * (1.5)²*6   =   π *2.25*6

V(c)  = 42.39 in³

Now V(p) =  Square of the base ( of side 3 in) * h

h  =  6 in

V(p)  =  (3)²*6

V(p)  =  54 in³

If we compare these two volumes we see that the volume of the cylinder is small than that of the square prism

...5, ___, 29, .....

The missing term is ___

Answers

Answer:

17

Step-by-step explanation:

I think the answer is 17 if helpful please mark me brainliest!

Answer:

12

Step-by-step explanation:

see if you do the math you will find out that its 12         17+12=29

A man walks 1500 metres.

On a map this is shown as 3cm.

What is the scale on the map?​

Answers

The scale on this map is 1 cm = 500 meters

The scale on the map is 1 cm for 500 m.

What is scale factor?

A scale factor is defined as the ratio between the scale of a given original object and a new object, which is its representation but of a different size (bigger or smaller).

Given that, A man walks 1500 metres. on a map, this is shown as 3 cm.

3 cm = 1500 m

1 cm = 500 m

Hence, The scale on the map is 1 cm for 500 m.

For more references on scale, click;

https://brainly.com/question/841108

#SPJ2

What is the area of the shaded region?
12"
7"
15"
Area: _____
square inches

Answers

Answer:

first find the area of the triangle by the formula of 1/2 b. h ( . means multiply) then find the area of rectangle by the formula of (length . width) then. the area of rectangle -the area of triangle

Susie flips a coin three times. what is the probability of her getting tails all three times?​

Answers

Answer:

18

Step-by-step explanation:

Hoped this helped!!

Answer:

1/8 or 12.5%

Step-by-step explanation:

It is a 0.5 percent chance of getting tails in a coin flip. Since you flip the coin three times, multiply the probability of getting tails in a coin flip three times. (0.5) Times (0.5) Times(0.5)= 1/8 or 12.5%.

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