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
IRISSAK [1]
3 years ago
9

Explain how you got the answer

Mathematics
1 answer:
Gnoma [55]3 years ago
7 0

Answer:

\huge\boxed{Center = (3,3),Radius = 2\sqrt{15} }

Step-by-step explanation:

<u><em>Given equation is</em></u>

x^2 + y^2 -6x-6y -42 = 0

Adding 42 to both sides

x^2 + y^2 -6x-6y = 42\\

Completing squares

x^2 -6x+y^2 -6x = 42\\(x)^2 - 2(x)(3) +y^2 - 2(y)(3) = 42

Adding (3)² => 9 and (3)² => 9 to both sides

(x-3)^2+(y-3)^2 = 42+9+9\\(x-3)^2 + (y-3)^2 = 60\\(x-3)^2  (y-3)^2 = (2{\sqrt{15})^2}

Comparing it with (x-h)^2+(y-k)^2 = r^2 where Center = (h,k) and Radius = r

We get:

Center = (3,3)

Radius = 2\sqrt{15}

You might be interested in
Please help I cant fuigure this outtttttttttttttttttttttttttttttttttt
krek1111 [17]

Answer:

18 ft. By 13 ft.

Step-by-step explanation:

8 0
3 years ago
Factors of 6:factors of 7:
Olenka [21]
6: 1,3,2,6
7: 1,7
Factors of 6 are 1,3,2,6 because 1x6 (6x1) and 3x2. (2x3)

Factors of 7 are 1,7 because seven is a odd number so you can only multiply it by one and itself. (1x7 or 7x1)
6 0
3 years ago
A square has points at (2, 2) and (5, 2). What is the perimeter of the square?
DENIUS [597]

Answer:

These two points are 3 Units away from each other. 5 - 2 = 3

This accounts for one side of the square, to find the entire perimeter multiply 3 × 4 = 12

The perimeter of the square is 12 units

4 0
3 years ago
WILL MARK BRAINLIEST!!!!!!!!
SVETLANKA909090 [29]

Data:

15 16 14 15 19 17

n=6 points

sum is 96

mean is 96/6 = 16

Now we look at the absolute deviations, each of which is the absolute value of a score minus the mean, basically the distance of the score to the mean .

Scores   15 16 14 15 19 17

AbsDev    1  0  2  1    3  1

The sum of the absolute deviations is 8 and there are six of them so the

Mean Absolute Deviation = 8/6 = 4/3

Answer: 2.    8/6

7 0
3 years ago
Use the algebraic expressions for the length and width of Marlene's living room found in the
krok68 [10]

Answer:

<em>The area of Marlien's living room is 420 square ft</em>

Step-by-step explanation:

Before calculating the real dimensions of Marlien's living room, we must find the value of x.

Given the total shape of the house is a rectangle, then both widths must be equal and both lengths must be equal.

The widths are already written width identical expressions x-2+x, but the lengths are given as different functions of x. Equating both expressions, we have:

2x-10+x-2+\frac{1}{2}x-4+x-2=2x+2+\frac{1}{2}x-4+x-2

Simplifying:

-10 + x - 2 = 2

x = 10 + 2 + 2

x = 14

Since x=14 feet, the dimensions of Marlien's living room are

width=x=14 feet

length=2x+2=30 feet

Thus the area is:

A = 14*30 = 420 square ft

The area of Marlien's living room is 420 square ft

8 0
3 years ago
Other questions:
  • They ratio of pencils to erasers is 4:1 if their are 20 pencils how many erasers are there
    9·1 answer
  • A line intersects the point (-3,-7) and has a slope of -1/3. What is the slope intercept equation for this line? Y = -X/3 -[?]
    14·1 answer
  • Write,in its simplest form,the ration 3.5:800
    14·1 answer
  • Which would not be a step in solving 18=2(4+ x)
    8·1 answer
  • A formula used to find missing length of a right triangle
    15·1 answer
  • There are 42 technicians to repair 6 Aircrafts. The ratio of Aircrafts to technicians is…
    5·1 answer
  • Triangle ABC is a right triangle and the measure of angle A is 28 what are the measures of the other two angles
    6·1 answer
  • Brainliest to whoever gets it right !
    10·1 answer
  • What is the slope of the line that passes through the points (-4,-4) and (9,4)
    5·2 answers
  • 4. What does a purchasing power calculator compare?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!