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Nikolay [14]
3 years ago
6

I need help with part B

Mathematics
1 answer:
jekas [21]3 years ago
8 0

Answer:

Okay, do you have any images or choices?

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Can someone help with 2 and 3
hammer [34]
For number 2 it's would be 12.8

Sorry I don't have time for number 3
7 0
3 years ago
Read 2 more answers
Solve number 8 please
beks73 [17]

Answer:

see explanation

Step-by-step explanation:

the equation of a circle in standard form is

(x - h)² + (y - k )² = r²

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

given

x² + y² - 8x + 8y + 23 = 0

collect the x and y terms together and subtract 23 from both sides

x² - 8x + y² + 8y = - 23

using the method of completing the square

add ( half the coefficient of the x / y terms )² to both sides

x² + 2(- 4)x + 16 + y² + 2(4)y + 16 = - 23 + 16 + 16

(x - 4)² + (y + 4)² = 9 ← in standard form

with centre = (4, - 4 ) and r = \sqrt{9} = 3

this is shown in graph b

7 0
1 year ago
What is the probability that the next flood will occur four years from now?
Mrac [35]
1 in 100 or 1/100 would be the probability
6 0
3 years ago
X decreased by 7 is 38
marshall27 [118]

Answer:

45

Step-by-step explanation:

x - 7 = 38

add 7 to both sides to get the variable by itself

x = 45

7 0
3 years ago
Perry set450 chairs up perry put 20 chairs in a row he already set up15 rows howmany more chairs he need to set up
vredina [299]
450 chairs total
20 chairs per row
15 rows already set up
15×20=300
300 chairs already up
450-300=150
150 chairs left to set up
5 0
3 years ago
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