E.C. What is the standard equation of a circle with center (h,k) and radius r in the coordinate plane?

Answers

Answer 1

Answer:

(x-h)^2 + (y-k)^2 = r^2

Step-by-step explanation:

Here, we want to write the standard equation of the circle

We have this as;

(x-h)^2 + (y-k)^2 = r^2

The above equation is the standard equation for the circle

Answer 2

Answer:

(x − 4)2 + (y + 6)2 = 25

(x − 4)2 + (y − (-6))2 = 52

When I compare my equation with the standard form, (x − h)2 + (y − k)2 = r2, I get h = 4, k = -6, and r = 5. The center is at (4, -6), and the length of the radius is 5.

Step-by-step explanation:

edmentum


Related Questions

Part I. A New Bike and Skateboard Problem

Uncle Eddie asked McKenna and Lara to order 108 new wheels for the 42

skateboards and bicycles in his repair shop. How many bicycles and how

many skateboards are in Uncle Eddie's shop?

Answers

Answer:

Number of bicycles = 30

Number of skateboards = 12

Step-by-step explanation:

Let the number of bicycles = x

Let number of skateboards = y

It is given that there are total bicycles and skateboards = 42

∴ x + y = 42  ........(1)

Now a bicycle has two tires and a skateboard has four tires, this gives an equation :

2x + 4y = 108 .......(2)   (Since uncle Eddie asks to order 108 tires)

Therefore, solving equation (1) and (2), we get

2(x+y=42)

2x+4y=108

  2x+2y = 84

- (2x+4y = 108)  

      - 4 y = - 24

    or   4 y = 24

   or      y = 12

Now substituting the value of y in equation (1),

x + 12 = 42

x = 42 -12

x = 30

So number of bicycles = x =30

And number of skateboards = y = 12

find the value of (a+b)^2 if a^2+b^2=10 and ab=3

Answers

Answer:

(a+b)^2 if a©+2b

Step-by-step explanation:

i not sure

Answer:

16

Step-by-step explanation:

.

On a certain hot summers day, 672 people used the public swimming pool. The daily prices are $1.50 for children and 2.50 for adults. The receipts for admission totaled $1289.00. How many children and how many adults swam at the public pool that day?

Answers

Adults = 281
Children = 391

We have two equations: number of people and money. I’ll use a for adults, c for children.

a + c = 672
2.5a + 1.5c = 1289

First we’ll solve for number of adults in terms of c
a = 672-c

Then drop that expression into the second equation to solve for a numerical value for c

2.5(672-c) + 1.5c = 1289
1680 - 2.5c + 1.5c = 1289
-c = -391
c = 391

Now put that into the first equation to get a numerical value for a

a + 391 = 672
a = 281

Checking the math:
2.5(281) + 1.5(391)
= 702.5 + 586.5
= $1289

If the side lengths of a cube are 16 feet, what is the correct way to write the expression to represent the volume of the cube in exponential form?
A. 16 ⋅ 3
B. 16 ⋅ 16 ⋅ 16
C. 16^3
D. 3^16

Answers

The answer would be B

PLEASE HELPPPPP SOOOONNNNN
Mr. Sanchez’s class sold Snickers for $1.50 each and Mr. Kelly’s class sold bottles of fruit juice for $1.26 each. Together, the classes sold 82 items and earned $115.56 for their school.
(a) Write and solve a system of equations that model the problem. Show all your work.

X*1.50+Y*1.26= 115.56



(b) Which class earned more money?


(c) How much more money did that class earn?

Answers

Answer:

Mr. Kellys class sold more fruit juice I think. I could be wrong but i am pretty sure that is the answer!

Step-by-step explanation:

I'm stressing out can someone help!

Answers

Answer:

please like

Step-by-step explanation:

164-52=112

112÷8=14

so for a

the upper option

14w + 52(her savings) = 164 (bike cost)

for b

w=14

Answer:

xd nie powoem bo nie wiem xd xd xd xd xd xd x d

In PQR, Q= 76, PQ = 18, and QR = 27
Please find angle P, T and PR for 5

Answers

Answer:

Step-by-step explanation:

Given:

m<Q = 76°

PQ = r = 18

QR = p = 27

Required:

Find P, T, and PR (q)

Solution:

✔️To find PR(q), apply the Law of Cosines.

Thus:

q² = r² + p² - 2rp×cos(Q)

Plug in the values

q² = 18² + 27² - 2×18×27×cos(76)

q² = 1,053 - 235.148

q² = 817.852

q = √817.852

q = 28.6 (nearest tenth)

✔️Find P by applying the Law of Sines:

[tex] \frac{sin(P)}{p} = \frac{sin(Q)}{q} [/tex]

Plug in the values

[tex] \frac{sin(P)}{27} = \frac{sin(76)}{28.6} [/tex]

[tex] sin(P) = \frac{sin(76)*27}{28.6} [/tex]

[tex] sin(P) = 0.9160 [/tex]

[tex] P = sin^{-1}(0.9160) [/tex]

P = 66.3° (nearest tenth)

✔️R = 180 - (P + Q)

R = 180 - (66.3 + 76)

R = 37.7°

expand 2x(3x+2y)
answer needed asap

Answers

Answer:

6x^2+4xy

Step-by-step explanation:

Hope that helps you out!

Answer:

Step-by-step explanation:

6x^2+4xy

Urgent please help..

Answers

Answer:

0.39

Step-by-step explanation:

Height of triangle (h) = 2.5 + 4 = 6. 5 cm

Base of triangle (b) = 3 + 3 = 6 cm

Radius of circle (r) = 4 cm

Required probability = Area of triangle/Area of circle

[tex] = \frac{ \frac{1}{2} bh }{\pi {r}^{2} } \\ \\ = \frac{ \frac{1}{2} \times 6 \times 6.5 }{3.14 \times {4}^{2} } \\ \\ = \frac{3 \times 6.5}{3.14 \times 16} \\ \\ = \frac{19.5}{50.24} \\ \\ = 0.388136943 \\ \\ \approx0.39[/tex]

a + x + p + 8 = r
solve for x

all help is appreciated!!

Answers

a+x+p+8 =r

(to solve isolate x)

x=r-(a+p+8)

x= r-a-p-8

what conclusions can you give why some students decided not to go to school?​

Answers

Step-by-step explanation:

There are a number of reasons why some students decide not to go to school. Some of them may be associated with family and psychological problems such as anxiety and depression, which should be investigated by trained professionals at the school if there is any suspicion of these symptoms.

There is also the possibility that students who have decided not to go to school have been victims of bullying and aggression at school, which causes fear of retaliation and psychological trauma that negatively impact the person's life.

It is important that schools provide psychological support and an active policy that combats bullying and is pro-integration of students and diversity.

[tex]3q+2p+7[/tex]3q+2q+7

Answers

Answer:

that seem pretty hard but i think ik it

rebecca throws a fair six sided dice.
the letter in the diagram in the image attached that matches the probability of the dice landing on a number between 1 and 6 .​

Answers

Answer:

G

Step-by-step explanation: The dice will always land on a number between 1 and 6 because as long as it lands on a number this will come true so there is a 100% chance that a number is landed on.  G

gamestop is losing value at 5% per day. if its 50 dollars per share to day, how much will it be worth at the end of the week

Answers

Answer:

GameStop will be worth $34.92 by the end of the week

Step-by-step explanation:

It's sad, but true lol

A parachutist's elevation changes by - 72 ft in 9 seconds. What is the change in the parachutist's elevation each second

Answers

Answer:

Step-by-step explanation:

dy/dt=-72/9=-8ft/s

- 7(4-1) = 14
- 28 - 7r = 14
- 7r = 42
r = -6
What the right answer

Answers

Is this your question?

-7(4-1r) = 14

-28+7r=14

7r=32

r=32/7

Answer : I got two right answer
-28 -7r = 14 and -7r = 42

Step-by-step-explanation : if r = -6
Then -28 - 7×-6 = 14
14 = 14

-7×-6 = 42
42 = 42

Luke had $4,500 in his bank account and spent $1,800. What percent of his money did he spend?

Answers

Answer:

40%

Step-by-step explanation:

1800/4500 = 0.4

0.4 x 100 = 40%

Your answer is going to be 40%.
He spent 40% of his money

Your total at a
restaurant is $50. If you
want to tip the server
15%, what is your
total?

Answers

Answer:

tip: $7.50

total: $57.50

Step-by-step explanation:

you change the 15% into a decimal by moving the the decimal point 2 spots to the left so now you have .15

next do .15 * 50 to get 7.5, which is the tip

now to find the total, add 7.5 + 50 to get 57.5

Answer:

your total cost would be $57:50

please so work for the fraction in the picture. thank you so much in advance

Answers

Answer:

option A real x is a number

Help me pleaseeeeeeeeeeeee

Answers

Answer:

44,10

Step-by-step explanation:

I think this is the answer

Answer:

$44.10

Step-by-step explanation:

tip = 35 x .20 = 7.00

tax = 35 x .06 = 2.10

9.10 + 35.00 = 44.10

A trampoline has a jumping surface that is 15.7 ft. long and 12 ft. wide. What is the area of the jumping surface?

Answers

Answer:

188.4

Step-by-step explanation:

because if you multiply 15.7 and 12 you get 188.4 and that is the area of the jumping space.

Answer:

area = length×wide=15.7×12=188.4ft²

WILL MARK BRAINLISTTTTTTTTTTTT

Answers

Answer:

f(2) is -2

Step-by-step explanation:

plug 2 in everywhere you see x

-2(2)^2-2(2)+10

-2(4)-4+10

-8-4+10

-2

hope this helped!

13. How can you use estimation to find
92 +92 +92 +92 +92?

Answers

Answer:

bye adding them in your head

A group of 8 friends went to lunch and spent a total of $76, which included the food bill and a tip of $16. They decided to split the bill and tip evenly among themselves.

Which equations and solutions describe the situation? Select two options.
The equation StartFraction 1 over 8 EndFraction (x + 16) = StartFraction 76 over 8 EndFraction represents the situation, where x is the food bill.
The equation StartFraction 1 over 8 EndFraction (x + 16) = 76 represents the situation, where x is the food bill.
The solution x = 60 represents the total food bill.
The solution x = 60 represents each friend’s share of the food bill and tip.
The equation 8 (x + 16) = 76 represents the situation, where x is the food bill.

Answers

Answer:

1) The equation 1/8(x+16)=76/8 represents the situation, where x is the food bill.

2) The solution x=60 represents the total food bill.

These both answers are correct.

Step-by-step explanation:

Since there are 8 group of friends, and the total amount spent by them is $76 including the tip i.e $16.

If x is the food bill our equation can be:

(x+16)/8 = 76/8

 

(x+16)/8 = 9.5

x+16= 9.5*8

x= 76 -16

x= 60

The food bill is x=60.

Step-by-step explanation:

Answer:

A and C

Step-by-step explanation:

got it right on ed

Can someone help-
Im lazy lol
Ill mark brainliest c:

Answers

Answer:

c=34

Step-by-step explanation:

Use the Pythagorean theorem [tex]a^{2} +b^{2} =c^{2}[/tex]

(16^2)+(30^2)=c^2

1156=c^2

[tex]\sqrt{1156}[/tex]=c

c=34

Only 3% of turtle hatchlings will live to become breeding adults. How many turtles must have been born if the current number of breeding adults is 1,200?

Answers

Answer:

116400 I believe not 100% sure tho

The total number of turtles born is 40,000.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Given that, only 3% of turtle hatchlings will live to become breeding adults.

The current number of breeding adults is 1,200

Let the total number of turtles born be t.

Now, 3% of t=1200

3/100 ×t=1200

3t=120000

t=40000

Therefore, the total number of turtles born is 40,000.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ3

Find the measure of the indicated angle to the nearest degree?

Please hurry

Answers

Answer:

45 degrees

Step-by-step explanation:

Using the pythagorean theorem, the 3rd side=19. So the triangle is isosceles and therefore the 2 angles we don't know the measure of are congruent. One angle measures 90 degrees. So the last 2 angles must be 90 together, since we know a triangle equals 180 degrees. Therefore the angle we are trying to find is 45 degrees.

help me with an answer i'm bad doing maths​

Answers

Answer:

3(x+5)≡3x +a

3x + 15≡ 3x +a ⇒ a=15

I hope you understood!

Answer:

3(x+5)=3x+a

3x+15=3x+a

a=3x-3x+15

a=+15 ........ans

sara bought 36 ounces of cheese for 3.24 what was the unit price of cheese​

Answers

Answer:

$0.09

Step-by-step explanation:

Unit price= total price/ total units

$3.24/ 36oz= $0.09

Answer:

$0.09

Step-by-step explanation:

i just used my homework for this so i don't really know how to explain it cause i just had my answer there.

( 3.24 / 36 = $0.09 )

SOMEONE PLZ ANSWER THE NUMBERS!!!!

Answers

Answer: The median for the set of numbers is B. 11.

Step-by-step explanation: Order numbers least to greatest. 4,4,9,10,12,23,68,70

Find the middle numbers:

10, 12.

Find the number in between 10 and 12.

= 11

Answer:

B: 11

Step-by-step explanation:

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