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Bas_tet [7]
3 years ago
11

1)Find the center & radius for the following

Mathematics
1 answer:
postnew [5]3 years ago
4 0
The general equation of circles is (x-h)^2 + (y-k)^2 = r^2 where (h,k) is the center. 
1. 2x^2+2y^2=72 =x^2+y^2=36  c: (0,0); r = 6
2. (x-3)^2+(y-1)^2=4 : c: (3,1); r = 2
3. (x-5)^2+(y+2)^2=49;  c: (5,-2); r = 7
4. (y-4)^2+(x-10)^2=64:  c: (4,10); r = 8
5.(x^2-6x+9)+(y^2+8y+16)=1:  c: (3,-4); r = 1
6. x^2+12x+y^2-8y=-27 =<span>x^2+12x + 36+y^2-8y+16=-27+36+16=25:
 c( -6,4); r = 5</span>
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Write 6 17/20 as a decimal
djverab [1.8K]

Answer:

6.85

Step-by-step explanation:

6 17/20

Convert to improper fraction.

137/20

Divide.

= 6.85

3 0
3 years ago
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Solve for x and y <br> x+y=1<br> 2y-x=8
lara31 [8.8K]

Answer:

(- 2, 3 )

Step-by-step explanation:

Given the 2 equations

x + y = 1 → (1)

2y - x = 8 → (2)

Adding the 2 equations term by term will eliminate the x- term

(x - x) + (y + 2y) = (1 + 8), that is

3y = 9 ( divide both sides by 3 )

y = 3

Substitute y = 3 into either of the 2 equations and solve for y

Substituting y = 3 in (1)

x + 3 = 1 ( subtract 3 from both sides )

x = - 2

Solution is (- 2, 3 )

7 0
3 years ago
What are the slope and Y intercept of the linear function graft to the left?
Anna35 [415]

Answer:

Slope -\\\frac{1}{2}

Y intercept 1

so option 2 or B

Step-by-step explanation:

Slope is rise over run so 1 over -2

so -1/2

and y intercept is where the line crosses the y axis and it crosses on this graph at positive 1.

6 0
3 years ago
One year on Venus is equivalent to 224.7 days on Earth. How many days on Earth, in decimal from, are equivalent to 9 ½ years on
Ivan

By using simple rule of three, a period of 9.5 years on Venus is equivalent to 2134.65 terrestrial days.

<h3>How many terrestrial days are equivalent time in Venus?</h3>

One year on Earth is equivalent to 365.3 days and one year on Venus is equivalent to 224.7 days, the equivalent terrestrial time of 9.5 years on Venus is found by simple rule of three:

x = 9.5 yr × (224.7 days / 1 yr)

x = 2134.65 days

A period of 9.5 years on Venus is equivalent to 2134.65 terrestrial days.

To learn more on simple rule of three: brainly.com/question/15209325

#SPJ1

6 0
2 years ago
Consider the following equations:
Veseljchak [2.6K]

Answer:

c number is the correct one i think

6 0
3 years ago
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