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Nutka1998 [239]
2 years ago
13

Please help. Not sure I know what I am doing

Mathematics
1 answer:
Aleksandr [31]2 years ago
5 0

Answer:

  B.  (x +5)² +(y -5)² = 9

Step-by-step explanation:

The standard form equation for a circle with center (h, k) and radius r is ...

  (x -h)² +(y -k)² = r²

__

When the center is (h, k) = (-5, 5) and the radius is r = 3, this becomes ,..

  (x -(-5))² +(y -5)² = 3²

Simplifying gives ...

  (x +5)² +(y -5)² = 9 . . . . . matches choice B

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What is the midpoint of (-23,-14) and (-18,2)
zloy xaker [14]

Given two coordinates point 1 as (-23,-14) and point 2 as(-18,2).

To find the midpoint we would use the formula below;

\text{midpoint(x,y)}=(\frac{x_1+x_2_{}_{}}{2},\frac{y_1+y_2}{2})

Where x1=-23, x2=-18, y1=-14, y2=2

We would substitute the values into the midpoint formula.

\begin{gathered} \text{midpoint =(}\frac{-23-18}{2},\frac{-14+2}{2}) \\ =(-\frac{41}{2},-6) \end{gathered}

Therefore, the answer is

\text{midpoint}=(-\frac{41}{2},-6)

7 0
1 year ago
(2+2w)⋅4+9(w+3) please answer this I am very confused
defon

Answer:

17w+35

Step-by-step explanation:

(2+2w)⋅4+9(w+3)

Distribute the 4  and the 9

2*4 + 2w*4 +9*w+9*3

8+8w +9w +27

Combine like terms

8w+9w +8+27

17w +35

8 0
3 years ago
Read 2 more answers
Figure A is a scale image of Figure B.<br> whas the value of x?
spayn [35]
X = 30 because the ratio of 27/45 = .6 so 18/.6 is 30
6 0
2 years ago
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What is the value of the expression below?
lozanna [386]

Answer:

25x10^18/4   or    6.25x10^18

Step-by-step explanation:

2.5x10^33x5x10^-15/2

12.5x10^18/2

6 0
3 years ago
Esteban has a big jar of change in his room. He has 600 coins total, and 240 of them are pennies. What percentage of the coins a
Minchanka [31]
40%
\frac{240}{600}  =  \frac{ \times }{100 }  \\ 240 \times 100  =600 \times \\ 24000 \div 600  \\ 40 =  \times
7 0
3 years ago
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