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
Bad White [126]
3 years ago
13

Concentric circles are circles with the same center but different radii. Which equations represent concentric circles along with

the circle shown in the graph? Check all that apply.
x2 + y2 = 25
(x – 8)² + (y – 9)² = 3
(x – 8)² + (y – 9)² = 14
(x – 8)² + (y + 9)² = 3
(x + 8)² + (y + 9)² = 25
(x + 9)² + (y + 8)² = 3
Mathematics
2 answers:
Harrizon [31]3 years ago
7 0
<span>(x – 8)² + (y – 9)² = 3
(x – 8)² + (y – 9)² = 14
</span>are the correct answers
Alexus [3.1K]3 years ago
4 0

As given Concentric circles are those circles having same center but having different radii.

General equation of Circle → (x-a)² + (y-b)² = r², Center = (a,b),Radius = r

1. x ²+ y² = 25

→ ( x-0) ²+ (y-0)² = 5²  , center  = (0,0), Radius = 5

2.(x – 8)² + (y – 9)² = 3

→(x – 8)² + (y – 9)² = (√3 )², Center =(8,9), Radius = √3

3.  (x – 8)² + (y – 9)² = 14

→ (x – 8)² + (y – 9)² = [√14]², center = (8,9),Radius = √14

4. (x – 8)² + (y + 9)² =

→ (x – 8)² + (y + 9)² = [√3]², Center = (8,9), Radius = √3

5. (x + 8)² + (y + 9)² = 25

→(x + 8)² + (y + 9)² = 5² , Center = (-8,-9),Radius = 5

6. (x + 9)² + (y + 8)² = 3

→(x + 9)² + (y + 8)² = [√3]², Center = (-9,-8), Radius = √3

⇒Circle (2)→(x – 8)² + (y – 9)² = (√3 )², Center =(8,9), Radius = √3 and Circle 3 which is → (x – 8)² + (y – 9)² = [√14]², center = (8,9),Radius = √14 are Concentric.

You might be interested in
State which of the following sets of ordered pairs represent a function.
zalisa [80]

Answer:

Option (D) is correct.

Step-by-step explanation:

A function can be termed as a process from a set of x values to a set of possible y-values where each x-value relates to exactly one y-value.

In other words, a relation can only be a function there is no repetition of x-values. It means a relation can not have duplicated inputs.

Given the sets

Set A: (5,2), (4, 3), (3, 4), (2,5)

Set B: (-1,-6), (0, 2), (1, 2), (3, 6)

Set C: (2, 1), (4, 2), (2, 3), (8,4)

It is clear that sets A and B represent the function because, in these sets, each x-value relates to exactly one y-value. In other words, there are no duplicated inputs.

But, set C has duplicated inputs i.e. x = 2 is repeated twice, and a function can not have a repeated input.

Therefore, we conclude that set A and set B represent a function.

Thus, option (D) is correct.

7 0
3 years ago
Why it is not possible for two lines to be parallel and perpendicular?
max2010maxim [7]
Parallel lines have the same slope. for example, the two lines y = 6x + 3 and
y = 6x - 5 are parallel because they have the same slope, 6x.

the slopes of perpendicular lines are opposite reciprocals, which means that you would flip the numbers of the fraction and make it negative. for example, the opposite reciprocal of -3x is 1/3x.

also, parallel lines never intersect, whereas perpendicular lines intersect at a 90 degree angle.

therefore, it isnt possible for two lines to be both parallel and perpendicular.
7 0
3 years ago
Need help on my work I'm marking you the brainiest if the answer is right! hurry pleaseeeeeeee need help quick asap! helpppppppp
Elena L [17]

y<2x+2

2 is your y intercept and your slope is 2 (positive)

no or equal to so we have a positive slanted dotted line

your answer is the last one

7 0
3 years ago
Read 2 more answers
The sum of matrices A and B is C.
GuDViN [60]

Answer:

Step-by-step explanation: -3

4 0
3 years ago
A central angle of a circle measures 42 degrees. What else can be shown to measure 42 degrees?
Slav-nsk [51]

Answer:

Vertically opposite angles

Step-by-step explanation:

Given

\theta = 42^\circ

Required

What else can measure \theta = 42^\circ

The question has missing options. So, I will give a general explanation.

Using the attached image as a point of reference.

Given that:

\theta = 42^\circ

The value of b is calculated as:

b = \theta

Because b and \theta are vertically opposite angles

<em>This gives:</em>

<em></em>b = 42^\circ<em></em>

<em></em>

<em>So, one possible answer to the question is a vertically opposite angle</em>

4 0
3 years ago
Other questions:
  • Graph the line with slope of 4/3<br> and goes through the point (1,3)<br><br> ANSWER THIS FAST!
    5·2 answers
  • A jar if dimes and quarters is worth $4.55. If there are the same number of dimes as quarters, what is the value of only the dim
    8·1 answer
  • Megan earned four dollars for an hour of babysitting on Saturday here and $16 how many hours did she babysit
    6·1 answer
  • The amount of ozone, Q, in the atmosphere is decreasing at a rate proportional to the amount of ozone present. If time t is meas
    8·1 answer
  • 1. If x + 13 = 5, then the value of x is<br> (a) 18<br> (b)-18<br> (c)-8<br> (d) 8
    7·2 answers
  • How do I write a compound inequality?
    6·1 answer
  • How many points is this question<br>​
    10·2 answers
  • If f(x)=2x and g(x) = x-4 what is the value of g(f(3)) ?
    12·1 answer
  • Can some one help me with this question its hard :( down below ill give brainliest
    9·1 answer
  • For each ordered pair, solve the percent problems to find the coordinates. (x is 110% of 10 y% of 50 is 3.5).
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!