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Sav [38]
3 years ago
10

Find the equationof a circle whose centre is (-3-15) and passing point (5,-1) find the equation of circle..​

Mathematics
1 answer:
Ludmilka [50]3 years ago
4 0

Answer: (x+3)^{2} +(y+15)^{2}=260

Step-by-step explanation:

The centre is (-3,-15), so we can say the equation of circle is (x+3)^{2} +(y+15)^{2}=r^{2}. put (5,-1) at this equation.

then, we can know r^{2}=260.

∴ (x+3)^{2} +(y+15)^{2}=260

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Solve<br> 3/ x-2 - 2/ x+3 =1<br> Leave your answer in surd form.
zepelin [54]

Answer:

Step-by-step explanation:

3/(x-2) - 2/(x+3) = 1....multiply everything by (x-2)(x+3)

3/(x-2) * (x-2)(x+3) - 2/(x+3) * (x-2)(x+3) = 1(x-2)(x+3)

3(x+3) - 2(x-2) = 1(x-2)(x+3)

3x + 9 -2x + 4 = (x-2)(x+3)

x + 13 = x^2 + x - 6

x^2 - x + x - 6 - 13 = 0

x^2 - 19 = 0

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8 0
4 years ago
Point P is shown on the number line below.
Shalnov [3]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
It took 30 1-foot square tiles to cover the floor of the Henderson's entry. The length and width of their family room is three t
mixer [17]

Answer:

27 boxes

Step-by-step explanation:

Number of tiles required to cover the entry floor = 30

Since the size of each tile is 1-foot square, then;

area of Henderson's entry = area of each tile x 30

                                            = 1 x 1 x 30

                                            = 30 ft^{2}

Let the length of the entry be represented by x, and its width by y.

So that;

length of the family room = 3x

width of the family room = 3y

Area of Henderson's family room = length x width

                                                       = 3x x 3y

                                                       = 9xy

But,

xy = Area of Henderson's entry = 30 ft^{2}

So that;

Area of Henderson's family room = 9 x 30

                                                       = 270 ft^{2}

Therefore, 270 numbers of 1-foot square tiles would be required to tile the Henderson's family room.

Given that: 10 tiles come in a box number of box to tile the family room can be determined by;

number of box = \frac{270}{10}

                         = 27

The number of boxes required is 27.

7 0
3 years ago
What is the simplified form of the expression 5(14-2)^2/2?
Vlada [557]
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360
3 0
4 years ago
Read 2 more answers
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loris [4]

Answer:

26.98%

Step-by-step explanation:

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8 0
4 years ago
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