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
Step2247 [10]
3 years ago
9

PLZ HELP ASAP FEATURES OF A CIRCLE FROM ITS EXPANDED EQUATION LAST ONE

Mathematics
1 answer:
pantera1 [17]3 years ago
5 0
We have the following equation:
 x2 + y2 + 6y - 72 = 0
 Rewriting we have:
 x2 + y2 + 6y = 72
 Complete squares we have:
 x2 + y2 + 6y + (6/2) ^ 2 = 72 + (6/2) ^ 2
 x2 + y2 + 6y + (3) ^ 2 = 72 + (3) ^ 2
 x2 + y2 + 6y + 9 = 72 + 9
 x2 + (y + 3) 2 = 81
 So, the center is:
 (0, -3)
 The radio is:
 r = 9
 Answer:
 
(0, -3)
 
r = 9
You might be interested in
PLEASE HELP VERY URGENT
gavmur [86]

Answer:

B) (2, 1)

Step-by-step explanation:

−x + 3 = 2x - 3

-2x - 2x

___________

−3x + 3 = −3

- 3 - 3

_________

−6 = −3x

__ ___

−3 −3

2 = x [Plug this back into both equations above to get the y-coordinate of 1]; 1 = y

I am joyous to assist you anytime.

6 0
3 years ago
out of 30 questions on the maths test tomi knew the answer to 27 of them what percentage of questions did tomi know the answer f
Vedmedyk [2.9K]

Answer:

90

Step-by-step explanation:

\frac{27}{30}  \times 100

so after we cut the nessecary we get 90%

Hope this helps you

Mark as the brainlist

thank you

8 0
3 years ago
Ruben is buying bricks for a project. He knows that 5 bricks weigh 26 1/4 lb. He wants to know the weight of 24 bricks. What is
Hatshy [7]

Answer:

5.25 and for the second part 126

Step-by-step explanation:

trust

8 0
3 years ago
Read 2 more answers
Simplify the following expression. 1/4 (24-16x)<br> a. 6+4x<br> b. 6+4<br> c. 6-4x<br> d. 6-4
adoni [48]
Answer is 6-4x

 <span>1/4 evaluates to 1/4
</span>
<span>Multiply x and 16
</span>
<span>Multiply x and 1

after you have the answer it should come out to  </span>24-16x then multiply 1/4 * 24-16x

1/4 *24=6


<span>1/4*(24-16*x) evaluates to 6-4x</span>
5 0
3 years ago
Read 2 more answers
Which solid has a greater volume?
Lady_Fox [76]

Answer:

C

Step-by-step explanation:

The volume of a cone is given by  V=\frac{1}{3}\pi r^2h

The volume of a cylinder is given by  V=\pi r^2 h

<em>Where h is the height and r is the radius</em>

The first figure is a cone with height 6 and radius 5, we can put it into the formula and find the volume:

\frac{1}{3}\pi r^2 h\\\frac{1}{3}\pi (5)^2 (6)\\=157.08

The second figure is a cylinder with height 50 and radius 1, we can put it into the formula and find the volume:

\pi r^2 h\\\pi (1)^2 (50)\\=157.08

We can see that they are equal. So answer choice C is right.

5 0
3 years ago
Other questions:
  • What is the value of x?<br><br> x = ___
    7·1 answer
  • Barbara's piano instructors House is 7 1/8 miles from her house. After biking for 1 3/4 Miles she stops to rest how much longer
    5·1 answer
  • What is perimeter of a rectangle with width 10 inches and length 13 inches
    12·1 answer
  • X³+y³+z³=k <br> If u get a right answer its going to be marked brainliest
    8·1 answer
  • Compute​ P(x) using the binomial probability formula. Then determine whether the normal distribution can be used to estimate thi
    5·1 answer
  • sally's paycheck was $1400. she used that to pay $770 rent. what percent of the check did she use for rent?
    15·2 answers
  • 5.
    10·2 answers
  • What do the parentheses mean in the expression 8(5x 9x + 6)?
    5·2 answers
  • Hannah and Corrine are playing a game by rolling two cubes, each numbered 1 through 6. If the sum of the numbers on the cubes is
    9·1 answer
  • 3a-8a&gt;-20 help I suck at math ​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!