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insens350 [35]
3 years ago
13

I don't understand how to do this

Mathematics
2 answers:
asambeis [7]3 years ago
7 0

Answer: the first option is the correct answer.

Step-by-step explanation:

The center of the circle is (-6, -3)

The formula for determining the equation of a circle us expressed as

(x - h)² + (y - k)² = r²

Where

r represents the radius of the circle

h and k represents the x and y coordinates of the center of the circle. Comparing with the given points,

h = - 6 and k = - 3

Radius, r = 12

Substituting into the formula, it becomes

(x - h)² + (y - k)² = r²

(x - - 6)² + (y - - 3)² = 12²

(x + 6)² + (y + 3)² = 144

IgorC [24]3 years ago
3 0

Answer:

It is the first option

(x + 6)^2 + (y + 3)^2 = 144

Step-by-step explanation:

the formula of a circle is given by

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

h would be the value of the center in x

k would be the value of the center in y

r = would be the radio

replacing with the given values

h = -6

k = -3

r = 12

(x - (-6))^2 + (y - (-3))^2 = 12^2

(x + 6)^2 + (y + 3)^2 = 144

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AleksAgata [21]

Answer:

Tn=12n(n+1)

Step-by-step explanation:

Explanation:

These are the triangular numbers - each term in the sequence being the sum of the first n positive integers:

T1=1=1

T2=3=1+2

T3=6=1+2+3

etc.

Notice that:

2Tn=(0)+1+(0)+2+...+(n−1)+(0)+n

2Tn+(0)+n+(n−1)+...+(0)+2+(0)+1

2Tn=(n+1)+(n+1)+...+(n+1)+(n+1)

2Tn=n(n+1)

So:

Tn=12n(n+1)

3 0
2 years ago
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kirill115 [55]
2n+5=6+1
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3 years ago
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Pani-rosa [81]

Answer:

A.

Step-by-step explanation:

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2 years ago
Find the new amount of the original amount is 45 grams and the percent of decrease is 36%.
Semenov [28]

Answer:

28.8

Step-by-step explanation:

the original is 45=100%

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if45=100%

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6 0
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Can someone please help me with this question please ?
EleoNora [17]

Answer:

x=43

Step-by-step explanation:

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x+72 = 115

then you subtract 72 from both sides

x=43

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