3 years ago

29. (09.04 MC)

Mathematics

1 answer:

lara [203]3 years ago

7 0

Answer:

The center is located at (-1, -2), and the radius is 5.

Step-by-step explanation:

The general equation of a circle is given as

(x - a)^2 + (y - b)^2 = r^2

where

a and b are the centre of the circle and r is the radius

Given the equation

x2 + 2x + y2 + 4y = 20

add 1 ad 4 to both sides

x2 + 2x + 1 + y2 + 4y + 4 = 20 + 4 + 1

factorise

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

comparing with the general equation

a = -1, b = -2, r = 5 (all measured in units)

You might be interested in

Dina picked 1/2 of a pound of berries. She divided them evenly among 5 containers. How many pounds of berries did Dina put in ea

dem82 [27]

$1 \div 2 = 0.5 \times 5 = 2.5$

7 0

3 years ago

Read 2 more answers

Combine like terms for 18p + 89 + 2p - 79

N76 [4]

$\huge\underline{\boxed{Hi\;there!}}}$

Like terms are "from the same family"

In the given expression, 18p and 2p are like terms.

Let's add them:

18p+2p-79+89

20p+10

$\huge\boxed{\mathfrak{Answer:{\boxed{\boxed{20p+10}}}}}$

$\bigstar$ I really hope it helps you!

$\rm{Have\;a\;splendiferous\;day!$

$\bold{FabulousKingdom}$

6 0

3 years ago

Read 2 more answers

???????????? Anyone know ????or can help

forsale [732]

A
b
a
b each side is 6cm because 48/8 is 6

4 0

3 years ago

I require assistance with this math problem

grigory [225]

Answer:

Step-by-step explanation:

Since RQ bisects WRV, WRQ = QRV, 48=7y+6. 48-6=42, leaving 42=7y. 42/7=6.

5 0

3 years ago

NEED HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

STatiana [176]

Answer:

your answer should be z

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers