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
Basile [38]
3 years ago
13

Write the equation of the circle graphed below

Mathematics
1 answer:
Serjik [45]3 years ago
7 0

<u>Given</u>:

Given that the circle is graphed with center (-1,1)

We need to determine the equation of the circle.

<u>Radius</u>:

To determine the radius of the circle, let us simply count the number of units between the center point to any point on the circle.

Hence, from the figure, it is obvious that there are 5 units between the center and any point on the circle.

Thus, radius of the circle is 5 units.

<u>Equation of the circle:</u>

The standard form for the equation of the circle is given by

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

where the center is (h,k) and radius is r.

Substituting the center (-1,1) and r = 5 in the above formula, we get;

(x+1)^{2}+(y-1)^{2}=5^{2}

(x+1)^{2}+(y-1)^{2}=25

Thus, the equation of the circle is (x+1)^{2}+(y-1)^{2}=25

You might be interested in
A car travels at an average speed of 64 miles per hour. How many miles does it travel in 4 hours and 15 minutes?
Burka [1]

15 minutes = 1/4 of an hour = 0.25

64 x 4.25 =272 miles total

8 0
3 years ago
In order to estimate the mean amount of time computer users spend on the internet each​ month, how many computer users must be s
levacccp [35]

Answer:

1877 computer users

Step-by-step explanation:

We have that for 95% of confident, the value of z has a value of 1.96 (attached table about it), they also mention the margin of error (E) that is 10 and finally the standard deviation (sd) that has a value of 221.

We apply the following formula:

n = [z * sd / E] ^ 2

replacing:

n = [1.96 * 221/10] ^ 2

n = 1876.27

that is, the minimum sample size is 1877

7 0
3 years ago
Suppose that we don't have a formula for g(x) but we know that g(3) = −1 and g'(x) = x2 + 7 for all x.
Sliva [168]

Answer:

  • g(2.95) ≈ -1.8; g(3.05) ≈ -0.2
  • A) tangents are increasing in slope, so the tangent is below the curve, and estimates are too small.

Step-by-step explanation:

(a) The linear approximation of g(x) at x=b will be ...

  g(x) ≈ g'(b)(x -b) +g(b)

Using the given relations, this is ...

  g'(3) = 3² +7 = 16

  g(x) ≈ 16(x -3) -1

Then the points of interest are ...

  g(2.95) ≈ 16(2.95 -3) -1 = -1.8

  g(3.05) ≈ 16(3.05 -3) -1 = -0.2

__

(b) At x=3, the slope of the curve is increasing, so the tangent lies below the curve. The estimates are too small. (Matches description A.)

4 0
3 years ago
Can i get help working out 3x− 12 = 2x+ 3
Naddik [55]

Answer:

x = 15

Step-by-step explanation:

3x− 12 = 2x+ 3

3x-2x-12 = 3

x = 3+12

x=15

hope this helps! :)

5 0
3 years ago
Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x), and express P in the form P(x)/
elena55 [62]

Answer:

idkgu 6gv6tv6tv6tv6tv6vt6tv6tv6tv6tv6fv6tv6tv6tvguug uh

5 0
3 years ago
Other questions:
  • How to use the table to solve these problems plea
    11·1 answer
  • How many solutions can be found for the system of linear equations represented on the graph?
    15·1 answer
  • I need help on number 9 please ;-;
    10·1 answer
  • A businessman bought three machines at rs 5400 each and spent 4000 on rearing and sold the machines for Rs Rs 7000 each, how muc
    13·1 answer
  • 4/ The table shows the heights of players in a basketball team. Height (cm) Frequency a) Work out the mean height of the team. R
    9·1 answer
  • Carrie usa 6 limones para hacer 24 onzas líquidas de limonada. Carrie está planeando una gran fiesta y necesita hacer 288 onzas
    13·1 answer
  • What's X+ 3 = x^ 3- 7x + 5​
    10·1 answer
  • I will give you brainliest whoever answers correct first!!!
    13·1 answer
  • 3.<br> Which of the following points satisfies the inequality y &gt; 5x – 2?
    11·2 answers
  • Running an average rate of 6 mph how many minutes will it take Kyle to run 3 miles?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!