1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oxana [17]
1 year ago
8

The raidius of the circle is r=___The equation of the circle in standard form____

Mathematics
1 answer:
Schach [20]1 year ago
3 0

step 1

Find the radius of the circle

To find out the radius, calculate the distance between the center and any point that lie on the circle

so

(-2,3) and (-2,0)

Its a vertical distance

so

r=3-0=3 units

step 2

we have the radius r=3 units and the center (-2,3)

the equation of the circle is

\begin{gathered} (x+2)^2+(y-3)^2=3^2 \\ (x+2)^2+(y-3)^2=9 \end{gathered}

You might be interested in
Luke and isabella make scale drawings.The scale from isabella's drawing is 6 m to 3 cm. The height of the fountain in isabella's
den301095 [7]

Answer:

The answer is "2.5 \ cm"

Step-by-step explanation:

While Luke is 5m to 2cm in size, it implies that every 2cm to Luke's drawing is 5m in real life. That real pond width must therefore be 5 m, given the fountain's width is 2 cm. As shown in the illustration, the step size for IsabelLa from the illustration to real life is \frac{6}{3} =2, which makes it simple to multiply any measure in the cm of her illustration by 2 to accomplish the exact size in m. So, in another direction around, they just have to divide the value by 2, instead of the divide from reality for drawing. So if the actual worth is 5m, it ought to be \frac{5}{2} = 2.5 \ cm in its width.

7 0
2 years ago
Fit a quadratic function to these three points:<br> (-2,8), (0, -4), and (4, 68)<br> Respuesta
zloy xaker [14]

Answer:

f(x) = 4x^2 + 2x - 4.

Step-by-step explanation:

Let the quadratic function be y = f(x) = ax^2 + bx + c.

For the point (-2, 8)  ( x = -2 when y = 8) we have:

a(-2)^2 + (-2)b + c = 8

4a - 2b + c = 8      For (0, -4) we have:

0 + 0 + c = -4   so c = -4.    For (4, 68) we have:

16a + 4b + c = 68  

So we have 2 systems of equations in a and b ( plugging in c = -4):

4a - 2b - 4 = 8

16a + 4b - 4 = 68

4a - 2b = 12

16a + 4b = 72    Multiplying 4a - 2b = 12 by 2 we get:

8a - 4b = 24  

Adding the last 2 equations:

24a = 96

a = 4

Now plugging a = 4 and c = -4 in the first equation:

4(4) - 2b - 4 = 8

-2b = 8 - 16 + 4 = -4

b = 2.

3 0
3 years ago
What number does x stand for in this equation?
Alex777 [14]

Answer:

C. -3

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

-7x + 6 = 27

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. [Subtraction Property of Equality] Subtract 6 on both sides:                        -7x = 21
  2. [Division Property of Equality] Divide -7 on both sides:                                 x = -3
3 0
2 years ago
A truck travels on the highway at a speed of 72 miles per hour. What is the speed of the truck in feet per second
Dmitry_Shevchenko [17]
The answer is .02 per second
7 0
3 years ago
Read 2 more answers
Parallelogram has a base of 9 and height of two thirds what is the area
Vsevolod [243]

Answer:

Area or parallelogram = base * height

Area = 9 units * 2/3 units

Area = 9/1 * 2/3 square units

Area = 18/3 square units

Area = 6 square units

Answer: area = 6 square units

6 0
2 years ago
Other questions:
  • A profit formula for dining plates from the previous year was modeled by the function P(d) = –15d2 + 1,200d – 2,000. The manufac
    11·1 answer
  • Plz help me i really need it
    14·1 answer
  • Six friends are buying pizza for dinner. Their choices are to buy 2 medium 10 inch diameter pizzas for $7, or one large 14 inch
    12·1 answer
  • The sum of three consecutive integers is -78. determine the smallest integer.
    12·1 answer
  • hmmm. i’ve been stuck for a while on this question. i am NOT cheating on a test, this is a routine practice assignment that isn’
    14·1 answer
  • С<br> 4<br> 77 km<br> 36 km<br> What is the length of the hypotenuse?
    11·1 answer
  • Mollie had a 15–ounce cappuccino at her neighborhood coffee shop. The cappuccino had 170 calories. If Mollie walks for one hour,
    12·1 answer
  • Which of the functions below could have created this graph?
    6·1 answer
  • 5. By using prime factorisation, determine if 324 and 588 are<br> perfect squares.
    8·1 answer
  • Can you pls help me, i need it
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!