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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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18h=252 what is it???
Nadusha1986 [10]

Answer:

h=14

Step-by-step explanation:

18h=252

18h/18=252/18

h=14

5 0
3 years ago
Please help!!!!!! im not too sure how to answer this.
zavuch27 [327]
I think the answer is B


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You rise up 4 and go to the right 3
3 0
3 years ago
Two towns, Ancaster and Dundas, are 4 km and 6 km, respectively, from an old railroad line that has been made into a bike trail.
serg [7]
Okay, so first you draw a picture and let x be the distance from point D to the rest stop. Then the distance from point  to the rest stop is  8 - x

You know that the length of the new trail is y + z, where y is the distance from Ancaster to the rest stop and z is the distance from Dundas to the rest stop. 

Now by the Pythagorean theorem,  y^2 = 4^2 + x^2 and  z^2 = 6^2 + (8 - x) ^2

So take square roots of these, add them, and minimize. 

Note: I am assuming the path is perfectly straight, otherwise this approach fails.
8 0
3 years ago
R = 5k - 6<br>work out the value of R when k=3​
viva [34]

Answer:

R=9

Step-by-step explanation:

In the equation, replace k with 3.

R=5(3)-6

Multiply.

R=15-6

Subtract

R=9

I hope this helps!

4 0
3 years ago
Read 2 more answers
What is the sum of each pair of binary integers?
Natali5045456 [20]
Add digit by digit, from the right, just like any number, except that if it adds to 2, then put a zero and carry one (instead of carrying when it adds to 10 or more).

Example:  < means carry, decimal equivalent for checking
1011+1111

     1     0     1     1         (8+2+1=11)
+   1     1     1     1         (8+4+2+1=15)
---<---<----<----<----
1   1     0     1     0         (16+8+2=26)

Proceeding similarly,
a. 10101111+11011011 = 110001010  (394)
b. 10010111+11111111  = 110010110  (406)
c.  01110101+10101100 = 10010001  (289)

3 0
3 years ago
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