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
julsineya [31]
3 years ago
15

1-5. Find the coordinates of the center and the measure of the radius for a circle whose equation is, 1. (x-8)^2+(y+4)^2=12 2. (

x+8)^2+(y-4)^2=81 3. X^2+(y-5)^2=9 4. (x+4)^2+(y+5)^2=64 5. (x-7)^2+(y-3)^2=144 6. Write the equation of a circle whose center is (0, -5) and radius is 7. 7. Write the equation of a circle whose center is (6, -1) and diameter is 12. 8. Write the equation of a circle whose center is (-2, 3) and radius is 4. 9. Find the radius of a circle whose center is (0,3) and a y-intercept of (0,7).
Mathematics
1 answer:
Ksju [112]3 years ago
7 0

Answer:

1. (8,-4), sqrt(12) = 2×sqrt(3)

2. (-8,4), 9

3. (0,5), 3

4. (-4,-5), 8

5. (7,3), 12

6. x^2 + (y+5)^2 = 49

7. (x-6)^2 + (y+1)^2 = 144

8. (x+2)^2 + (y-3)^2 = 16

9. (0-0)^2 + (7-3)^2 = r^2

0 + 16 = r^2

=> r = 4

Step-by-step explanation:

remember, the general equating of a circle is

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

You might be interested in
=
vovikov84 [41]

Answer:

Total weekly earning = 11x + 9y

Step-by-step explanation:

(a) 11x + 9y = Total weekly earning

4 0
3 years ago
Read 2 more answers
Which of the following formulas is used to calculate the probability of independent events A and B?
maksim [4K]
P (A and B) = P(A) * P(B)...answer is D
8 0
3 years ago
Read 2 more answers
There are four consecutive integers. The sum of the first and third number is 140. what are the integers? please show work:)
marta [7]
69, 70, 71, and 72
69 and 71 are the first and third digits. 69+71=140
5 0
3 years ago
Find the probability of at least 2 girls in births. Assume that male and female births are equally likely and that the births ar
tiny-mole [99]
We assume that male and female births are equally likely, it means that the probability of birth of male= probability of birth of female = 100%/2=50% or 0.5We have 2 independent events. So what will be the variants:
Male and FemaleMale  and Male Female and Male Female and Female 
All four variants are equally likely.Probability of each one is 1/4 = 0.25.So, Result "Female and Female"
 are probability = 0.250 --- if round to three decimal places.
6 0
3 years ago
Kiteretsuki builds a robot to help him paint a fence. The robot has a paint roller of width 1 foot, that works like a ball-point
balandron [24]

Answer:

72 inches

Step-by-step explanation:

Due to the programming error, the robot first moves to the right and then to the left. The second time it moves to the right, it increases its distance by 1 foot to the right and then turns back and moves to the left, reaching the starting position again.

The patterns is as follows:

move 1: moves to the right by 1 foot.

moves 2: moves to the left.

moves 3: moves to the right by 2 feet.

moves 4: moves to the left

moves 5: moves to the right by 3 feet.d

moves 6: moves to the left

moves 7: moves to the right by 4 feet.

moves 8: moves to the left

moves 9: moves to the right by 5 feet.

moves 10: moves to the left

moves 11: moves to the right by 6 feet.

We see that in the end, the robot has managed to only move 6 ft. Since 1 ft = 12 inches, 6 ft = 6* 12 = 72 ft.

So, the robot has painted 72 inches of the fence before Kiteretsuki returns.

8 0
3 years ago
Other questions:
  • What is the area of triangle FGH? Round your answer to the nearest tenth of a square centimeter.
    11·2 answers
  • What is the simplified form of the following expression (5/4)^3
    5·1 answer
  • Write cot θ in reduced fraction form for 26/24
    5·1 answer
  • PLEASE IM IN CLASS AND I REALLY NEED AN ANSWER!! 20 PTS & BRAINLIEST!!
    11·2 answers
  • Plz help me by answering these circled questions<br>in steps plz
    10·1 answer
  • The school spirit club made a banner to hang an area of 36 square feet and a length of 9 feet what is its width
    10·1 answer
  • If f(x)=x³-2x², which expression equivalent to f(i)?
    11·1 answer
  • What is the measure of
    13·1 answer
  • Whats 5+5? like legit i don't know
    12·2 answers
  • Please Help me solve this (Who ever answers correctly will get brainlest)
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!