3 years ago

What is the center of the circle represented by this equation? x2 + (y + 9)2 = 25

Mathematics

1 answer:

Pepsi [2]3 years ago

3 0

(0,-9). What makes x zero and what makes y zero

You might be interested in

darlene wants to buy martian invader video game. The video game price is $100. Darlene has a coupon for 25%. What is the price o

Paraphin [41]

Answer:

$75

Step-by-step explanation:

100 ÷ 25=75

Hope this helps!☺

6 0

3 years ago

Convert 27.0 meter per second to kilometer per hour<br><br> Note: i need this ASAP plzz

DedPeter [7]

Answer:

97.2

Step-by-step explanation:

multiply the speed value by 3.6

8 0

3 years ago

The diagram shows a sector of a circle radius 10cm

Yuki888 [10]

Answer:

$\text{Perimeter of sector = 43.6 (Rounded to the nearest tenth.)}$

Step-by-step explanation:

$\text{Perimeter of the sector = Radius + arc length + radius}$

$\text{Radius = 10 cm}$

$\text{Perimeter of the sector = 10 + arc length + 10 }$

$\text{Perimeter of the sector = 20 + arc length }$

$\text{arc length = (sector angle/ 360 ) * perimeter of the circle}$

$\text{Perimeter of a circle }=2\pi r$

$\text{sector angle} = 135$

$\text{arc length} = (135/ 360 ) * 2\pi (10)$

$= (3/8) 20\pi$

$= 15\pi /2$

$\text{Using }\pi =3.14$

$= 15 * 3.14 /2$

$= 23.55$

$\text{Perimeter of the sector = 20 + 23.55}$

$= 43.55$

$= 43.6 cm$

$\text{perimeter of the sector = 43.6 cm }$

8 0

2 years ago

One number is 3/8 of another number. The difference of the two numbers is 4.2. What is the lesser number

boyakko [2]

Answer:

2.52.

Step-by-step explanation:

If one number is x then the other = 3x/8.

Also x - 3x / 8 = 4.2

x - 0.375 x = 4.2

0.625x = 4.2

x = 4.2 / 0.625

x = 6.72.

So the lesser number is 6.72 * 0.375 = 2.52.

4 0

3 years ago

can you please just help me so that i dont fail this one because everything i've been doing i've been failing and it's because i

Julli [10]

1. r=5
2. x=2
3. x=-3
4. y=11
5. x=-11

6 0

3 years ago

Read 2 more answers