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Ber [7]
3 years ago
14

Give the equation for a circle with the given center and radius. Center at (2, -9), radius = 3

Mathematics
1 answer:
olga2289 [7]3 years ago
8 0

Answer:

B

Step-by-step explanation:

The standard form of the equation of a circle is

(x - h)² + (y - k)² = r²

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

Here (h, k) = (2, - 9) and r = 3, thus

(x - 2)² + (y - (- 9))² = 3², that is

(x - 2)² + (y + 9)² = 9 → B

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Which value of k makes the inequality 11+2k>19 true?
Vadim26 [7]

Answer:

6.

Step-by-step explanation:

11 + 2k > 19

2k > 19 - 11

2k > 8

k > 8/2

k > 4.

4 0
3 years ago
PLease tell me how to do it that will give you brainliest
Evgen [1.6K]

Answer: Table H would be the correct answer;

The rule of a function is that for each x-value given there can't be more than 1 y-value

<u>In Table F:</u>

x = -13, then y = -2

x = -13, then y = 0

x = -13, then y = 5

x = -13, then y = 7

For the x-value -13, there are 4 different y-values, so <em>it's not a function.</em>

<u>In Table G:</u>

x = -6, then y = 3

x = -1, then y = -1

x = -1, then y = 5

x = 10, then y = -9

For the x-value -1, there are 2 different y-values, hence <em>this isn't a function.</em>

<u>In Table H:</u>

x = 1, then y = 4

x = 3, then y = 4

x = 7, then y = 4

x = 12, then y = 4

For each x-value, there is only 1 y-value, so <em>this is a function.</em>

<u>In table J:</u>

x = -9, then y = -7

x = -2, then y = -5

x = 0, then y = 0

x = 0, then y = 6

For the x-value 0, there are 2 different y-value therefore <em>this isn't a function</em>

Hope this helps!

6 0
3 years ago
What is the value of x,if x=3²​
KatRina [158]

Answer:

x=9

Step-by-step explanation:

x = 3^2

x = 3*3

x=9

7 0
2 years ago
Read 2 more answers
Please help <br> The factors of -18 are listed in the table …
pav-90 [236]

Answer:

x= -2 and 9

Step-by-step explanation:

x ^{2}  + 7x - 18

factorize it

- 18 = 2×3×3

TO MAKE IT 7

3×3=9

9-2 =7

x ^{2}  + 9x - 2x - 18x = 0

x(x+9)-2(x+9)=0

x-2=0 ,x+9=0

x =2 x=-9

8 0
1 year ago
Calculate the unit rate. Label your work properly. Show your fraction work.
likoan [24]

Answer:

(9/10) of a pizza per hour.

Step-by-step explanation:

(3/4)*4=3

(5/6)*4= 3hr 20 mins

[3 (1/3)] / [3 (1/3)]=1

3 / [3 (1/3)]= 0.9

5 0
2 years ago
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