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Lelu [443]
3 years ago
12

Find the Coordinates of the center and the measure of the radius.

Mathematics
1 answer:
iris [78.8K]3 years ago
3 0
Circles have the equation (x-h)²+(y-k)²=r² with the center at (h,k) and radius r
so if you bring the equation into this form you can read everything off

x²+y²-4=0
x²+y²=4
(x-0)²+(y-0)²=2²

so the radius r=2
h=0,k=0 which means the center is at (0,0)
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Which number has the same value as 20 tens
Blizzard [7]
If your still using number blocks then it is 20 ones but if its just addition or so it is just 20
3 0
3 years ago
Find the area of the figure and type your result in the empty box.
pentagon [3]

Answer:

iyge4dutgn

Step-by-step explanation:

n8uj98ju6g

8 0
2 years ago
Factorise: 5(2^n)+2^n+2
marin [14]

Answer:

2 ( n + 2 ) ( n + 1 2 )

Step-by-step explanation:

coefficient of the first term:  

2 = 2 × 1

coefficient of the last term:  

2 = 2 × 1

coefficient of the middle term (using only the factors above):  

5 = 2 × 2 + 1 × 1

2 n 2 + 5 n + 2 = ( 2 n + 1 ) ( n + 2 )

Alternative method:

Treat the given expression as a quadratic set equal to zero, with the form

a n 2 + b n + c

and use the quadratic formula

− b ± √ b 2 − 4 a c 2 a

This will given solutions

n = − 2  and  n = − 1 2

for a factoring

2 ( n + 2 ) ( n + 1 2 )

Hope this helped

3 0
3 years ago
The median of 50 50 54 56 60 62 63 64 79 72 72
miss Akunina [59]

Answer:

62

Step-by-step explanation:

50,50,54,56,60,62,63,64,79,72,72,

median ids the number at the center

50,50,54,56,60(62)63,64,79,72,72

3 0
3 years ago
Kalani and Porter each simplify one of the Expressions below. If they add the results together what will be their sum. Kalani:4×
nadezda [96]

Answer:

54

Step-by-step explanation:

4x11-(17)       4x11-(17)

44-17            44-17

27 + 27

54

5 0
3 years ago
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