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
love history [14]
3 years ago
5

What is the equation of a circle with center (2,-8) and radius 9?

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
7 0

Answer:

x2+y2-4x+16y-13

Step-by-step explanation:

center (h,k)=2,-8

radius(r)=9

we know

(x-h)2+(y-k)2=r2

now insert above given information

(x-2)2+(y+8)2=9×9

leonid [27]3 years ago
4 0

Answer:

9^2= (x+2)^2+(y+8)^2

Step-by-step explanation:

The equation is r^2=(x+h)^2+(y-k)^2

You might be interested in
point I is on line segment HJ. GIVEN IJ = 3× + 3, HI = 3× - 1, and HJ = 3× + 8, determine the numerical length of HJ.
Vedmedyk [2.9K]

Given, IJ = 3x + 3, HI = 3x - 1, and HJ = 3x + 8.

Since I is a point on line segment HJ, we can write

HJ=HI+IJ\begin{gathered} 3x+8=(3x-1)+(3x+3) \\ 3x+8=6x+2 \\ 8-2=6x-3x \\ 6=3x \\ 2=x \end{gathered}

Put x=2 in HJ=3x+8.

\begin{gathered} HJ=3\times2+8 \\ HJ=6+8 \\ =14 \end{gathered}

Therefore, the numerical length of HJ is 14.

4 0
1 year ago
Find the period of the function y= 2/3 cos(4/7^x) + 2
slavikrds [6]

T = 2 π / | 4/7 |

T = 2 π / 4/7

T = 2 π × 7 / 4

T = 7 π / 2

Thus the correct answer is option A .

8 0
3 years ago
Read 2 more answers
Find the volume of the given prism. Round to the nearest tenth if necessary.
Alisiya [41]
Hello!

To find the volume of a rectangular prism you do hwl

h is height
w is width
l is length

4.2 * 5.3 * 12.1 = 269.346

The answer is 269.3 cubic centimeters

Hope this helps!
6 0
3 years ago
The average of two numbers is 10.What is the sum of the two numbers?
geniusboy [140]
The sum of the numbers is 20 10+10=20 20/2=10
5 0
3 years ago
Read 2 more answers
Pls help I’ll brainlest ASAP
svetlana [45]

Step-by-step explanation:

Given

-30 = - 0.4 k

30 = 0.4k

k = 30 / 0.4

k = 75

hope it helps :)

7 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for x. You must write your answer in fully simplified form.<br><br> -12x = 10
    11·1 answer
  • How many times will the string literal "Hi" appear in the lblMsg control? Dim intCount As Integer Do While intCount &gt; 4 lblMs
    11·1 answer
  • Lisa bought a suit on sale for 459. This price was 15% less than the original price. What was the original price?
    10·1 answer
  • Lucy’s parents built a swimming pool in the backyard. Use 3.14 for π.
    13·1 answer
  • How do I do this??????
    6·2 answers
  • (06.01)
    15·1 answer
  • IM BAD AT PROPORTIONAL RELATIONSHIPS PLEASE HELP
    15·2 answers
  • 6sacks of potatoes weigh 122.4 kg and 4 sacks of onions weigh 50 kg. What is the total amount of 1 sack of potatoes and 1 sack o
    10·1 answer
  • HELP URGENT PLEASSSSSSSSSSSSSSEEEEEEEEEEEEEEEE
    5·1 answer
  • Find the inverse please and thank you
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!