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DochEvi [55]
3 years ago
5

Find the distance between the two points (-4, -5) and (1, -2).

Mathematics
1 answer:
Leokris [45]3 years ago
7 0

using \: formula \\  \sqrt{(x2 - x1) {}^{2}  + (y2 - y1) {}^{2} }  \\  \sqrt{(1 - ( - 4)) {}^{2} + ( - 2 - ( - 5)) {}^{2} }   \\  =  \sqrt{34}
answer is B.
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shutvik [7]

Answer:15

Step-by-step explanation:

6 0
3 years ago
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Can someone please help me.
Katena32 [7]
Given 
- f(n) values for n=1,2,3,4
- possible candidates for the function

Solution:
Method: Evaluate some of the values, for each function.  A function with ANY value not matching the given f(n) values will be rejected.

N=1, f(n)=4
f(1)=4-3(1-1)=4
f(1)=4+3^(1+1)=4+3^2=4+9=13 ≠ 4   [rejected]
f(1)=4(3^(n-1))=4(3^0)=4
f(1)=3(4^(n-1))=3(4^0)=3*1=3  [rejected]

N=2, f(n)=12
f(1)=4-3(2-1)=4-3(1)=1 ≠ 12   [rejected]
[rejected]
f(1)=4(3^(2-1)=4*3^1=4*3=12
[rejected]

Will need to check one more to be sure
N=3, f(n)=3
[rejected]
[rejected]
f(3)=4(3^(n-1))=4(3^(3-1))=4(3^2)=4*9=36   [Good]
[rejected]

Solution: f(n)=4(3^(n-1))










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