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2 years ago

Find the equation of the circle whose center and radius are given.

Mathematics

1 answer:

kiruha [24]2 years ago

4 0

Answer:

(x + 2)^2 + (y + 5)^2 = 1

Step-by-step explanation:

Since this circle is centered at (-2, -5), we have to add values within the squares. The standard form of a circle equation is:

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

So -2 is h and -5 is k. Substituting that in we get:

(x + 2)^2 + (y + 5)^2 = r^2

We are given the radius is 1, and one squared is one, so the final equation is:

(x + 2)^2 + (y + 5)^2 = 1

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I need help, im a single dad construction worker from los angeles, my daughter is a very smart person. Im having trouble correct

Deffense [45]

Answer:

B=210

C=450

Step-by-step explanation:

Since you are asking for number 8, let's work with that problem :)

Firstly, we have to know we have rectangles here, and the area of a rectangle is given by the following formula:

$A_{rectangle}=(width)(height)$

So, in this problem we are given as an example the rectangle $A$ , with witdth $90$ and height $30$ . So, its area is:

$A=(90)(30)=2700$

The same happens with the small rectangle $B$ :

$B=(7)(5)=35$

And, we have to do the same with rectangles $B$ and $C$ :

<u>Rectangle $B$ :</u>

Width:7

Height:30

$B=(7)(30)=210$

<u>Rectangle $C$ :</u>

Width:90

Height:5

$B=(90)(5)=450$

If we sum $A$ , $B$ , $C$ and $D$ the result must be equal to the total are of the big rectangle:

$A+B+C+D=2700+210+450+35=3395$

Area of big rectangle with width $90+7=97$ and height $30+5=35$ :

$(97)(35)=3395$

6 0

3 years ago

Triangle ABC is going to be reflected over the line y = X.

Montano1993 [528]

Answer:

(-7, 1)

Step-by-step explanation:

Coordinate rules :]

Reflection over x-axis -- (x, y) -> (x, -y)

Reflection over y-axis -- (x, y) -> (-x, y)

Reflection over y = x -- (x, y) -> (y, x)

Reflection over y = -x -- (x, y) -> (-y, -x)

5 0

3 years ago

5+10-20 asdfghjklzxcvbnmmmmmmmmmmmqwertyuiop

Rina8888 [55]

Answer:

-5

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

The children’s museum has a large fish tank with the dimensions shown. The tank does NOT have a cover. What is the surface area

san4es73 [151]

Answer:

The answer is 230 square feet.

Step-by-step explanation:

Find the area of the bases, and the total of it is 280. I then subtracted 50 because the "covers" area is 50. That gives you the surface area without the cover

7 0

3 years ago

Read 2 more answers

The perimeter of a rectangle is 20m and the length is x m find the

dsp73

Answer:

2(x+y)

Step-by-step explanation:

perimeter=20cm

length=x

Take the radius to be y

area of a rectangle=2(length+width)

therefore area of a rectangle=2(x+y)

6 0

2 years ago