All categories

2 years ago

A circle is centered at (−3, 2) and has a radius of 2. Which of the following is the equation for this circle?

Mathematics

1 answer:

velikii [3]2 years ago

8 0

Answer:

Step-by-step explanation:

the equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) is the coordinates of the centre and r is the radius

here (h, k ) = (- 3, 2 ) and r = 2 , then

(x - (- 3) )² + (y - 2)² = 2² , that is

(x + 3)² + (y - 2)² = 4

You might be interested in

13. Factor 12 + 8. *<br>O 3(2+4)<br>4(3+2)<br>2(4+3)<br>4+3(2)

e-lub [12.9K]

2752 is this because this is hard ending as

4 0

2 years ago

(-3.2) to the power of 0

stellarik [79]

Answer:

Step-by-step explanation:

5 0

2 years ago

Plz show work and solve quick please need help!!!!!

Simora [160]

Surface area is just the area of all these 4 triangles plus the rectangle.

First we can find the area of the rectangle.

$\sf A=lw$

Half of the length is 28 cm, so the full length must be 28 * 2 = 56 cm.

$\sf A=(56)(27)$

$\sf A=1512cm^2$

The base for the left and right triangles are 27. The heights would be the net length minus half the length of the rectangle:

$\sf 82.8-28=54.8\? cm$

Calculate the area:

$\sf A=\dfrac{1}{2}bh$

$\sf A=\dfrac{1}{2}(27)(54.8)$

$\sf A=739.8\?cm^2$

We have two of these triangles.

$\sf 739.8\times 2=1479.6\? cm^2$

Now do the other two pair of triangles. The bases for them are 28 + 28 = 56 cm. The heights would be the net width minus the width of the rectangle:

$\sf 81.2-27=54.2\?cm$

Now find the area:

$\sf A=\dfrac{1}{2}bh$

$\sf A=\dfrac{1}{2}(56)(54.2)$

$\sf A=1517.6\? cm^2$

We have two of these triangles.

$\sf 1517.6\times 2=3035.2\?cm^2$

Add all the areas together:

$\sf 1512+1479.6+3035.2=\boxed{\sf 6026.80\? cm^2}$

7 0

3 years ago

Find tan B. AB=17,BC=15 AC= 8

Aneli [31]

Answer:

a is the ans;8/15

Step-by-step explanation:

we have tanb = p/ b

so,by taking reference angle b we get,

p=8 and b= 15.

therefore; tanb=8/15

5 0

3 years ago

Someone help, please!

Nikolay [14]

Answer:

(0,3) is one of them but i'm unsure what the other one is

Step-by-step explanation:

6 0

2 years ago