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
katen-ka-za [31]
3 years ago
8

Which is the equation of a circle that has a center of (-1, 3) and passes through the point (3, 6)?

Mathematics
1 answer:
tatiyna3 years ago
6 0

Answer:

( x + 1)^2 + ( y - 3)^2 = 25

Step-by-step explanation:

The equation of the circle with a center and a point

( x - a) ^2 + ( y - b) ^2 = r^2

( a , b) - center of the circle

( x , y) - any point on the circle

r^2 - radius

( -1 , 3) - ( center) - ( a, b)

a = -1

b = 3

( 3 , 6) - ( point) - ( x, y)

x = 3

y = 6

Step 1: substitute the center into the equation

( x -(-1)^2 + ( y - 3)^2 = r^2

( x + 1)^2 + ( y - 3)^2 = r^2

Step 2: sub the point into the equation

( x + 1)^2 + (y - 3)^2 = r^2

( 3 + 1)^2 + ( 6 - 3)^2 = r^2

4^2 + 3^2 = r^2

16 + 9 = r^2

25 = r^2

Step 3: sub the radius into the equation

( x + 1)^2 + ( y - 3)^2 = r^2

( x + 1)^2 + (y - 3)^2 = 25

Therefore, the equation of the circle is

( x + 1)^2 + (y - 3)^2 = 25

You might be interested in
1
Lena [83]

Answer:

7.5kg

Step-by-step explanation:

Given that:

Monday:

Mass of sand = 24 kg

Mass of cement = 5 kg

Tuesday :

Mass of sand = 36 kg

Let mass of cement = c

Mass of cement required to make the same type of mortar mix

Mass of Sand = mass of cement

24kg = 5kg

36kg = c

By cross multiplication :

24 * c = 5 * 36

24c = 180

Divide both sides by 24

c = 180 / 24

c = 7.5 kg

Hence mass of cement required is 7.5 kg

4 0
2 years ago
Write an addition sentence that helps you solve 15-9.​
valentinak56 [21]

Answer:

9+6=15

or

9+1+5=15

Step-by-step explanation:

6 0
2 years ago
What is the average rate of change from x = 0 to x = 4?
hammer [34]
1) find the corresponding y values for when x = 0 and when x = 4,
when x = 0, y = 4
when x = 4, y = 4

the coordinates are (0,4) and (4,4)

2) to calculate the average rate of change, find the slope of the two points:

(0,4) (4,4)

(change in y) 4 - 4 = 0
(change in x) 4 - 0 = 4

0/4 = 0

the average rate of change is 0!
3 0
3 years ago
How do you find the product of -2(3.1)
Alexxandr [17]

Answer:

- 6.2

Step-by-step explanation:

The product of - 2 (3.1) is - 6.2.

Brackets mean to multiply so we have to multiply the - 2 by 3.1 which gives a result of - 6.2.

5 0
3 years ago
When y = 35,x = 2.5. If the value of y varies directly with x what is the value of y when the value of xis 3.25
leonid [27]

Answer:

The value of y would be 45.5

Step-by-step explanation:

To solve this problem, start with the base form of direct variation.

y = kx

Now we can use our original values to model the equation and find k.

35 = k(2.5)

14 = k

Now we can model the equation as:

y = 14x

Now to find y, when x = 3.25, simply put 3.25 into the equation.

y = 14(3.25)

y = 45.5

8 0
3 years ago
Other questions:
  • Prof. Dumbledore is concerned that Harry, Ron and a few other students are still having some difficulties with significant figur
    5·1 answer
  • An algebraic expresion that has no like terms ( 2 words)
    7·2 answers
  • M3D5
    9·1 answer
  • A batch of 140 semiconductor chips is inspected by choosing a sample of 5 chips. assume that 10 of the chips do not conform to c
    15·1 answer
  • Simplify the following integer radical expression. <br> Show all work. <br> Square root of 24
    10·1 answer
  • Pls help me out................................​
    10·1 answer
  • A line contains the points (-4, 1) and (4, 6). What is the slope of the line?
    9·1 answer
  • When comparing his check register to his bank statement. Donté
    5·1 answer
  • Estimate the question 435 x 5.3
    7·1 answer
  • (please do step by step so I can understand)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!