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bija089 [108]
3 years ago
5

I put this but idk how to do it

Mathematics
1 answer:
Inessa05 [86]3 years ago
3 0
D ( AC ) = 6  ( because A and C have the same y-coordinate )
d ( AB ) = √[(x2 - x1)² + (y2 - y1)²],  
where A ( x1, y1 ) = ( -3, 1 )   and B ( x2, y2 ) = ( -1, 3 )
d ( AB ) = √[(-1 -(-3))² + (3 - 1 )²] = √[(-2)² + 2²] = √8 = 2√2
d ( BC ) = √[(3-(-1))² + (1-3)² =√[4² + (-2)²]= √20 = 2√5
The perimeter of ΔABC:
6 + 2√2 + 2√5 = 6 + 2 · 1.41 + 2 · 2.24 = 
= 6 + 2.82 + 4.48 = 13.30
 
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Hikers spent the following amounts of time (in minutes) to complete a nature hike:48, 46, 52, 57, 58, 52, 61, 56.
Solnce55 [7]
For A for the mean just add them all up which would be which is 430 and divide by the number of numbers there is so 430 divided by 8 = 53.75 and the median order them from least to greatest and find the one in the middle which is 52 and 56 when there's two just add them and then divide it by 2 which is 54

Hope this helped :)
8 0
3 years ago
Read 2 more answers
23x +5y−2, when x=6 and y=3.
zhenek [66]

Answer:

151

Step-by-step explanation:

Plug in 23(6)+5(3)-2

Simplify 138+15-2

Solve 153-2

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8 0
2 years ago
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Use completing the square to solve the equation x^2+16x=-44.
Sidana [21]

Step-by-step explanation:

our equation is x²+16x = -44

  • x²+16x= -44
  • x² is the first term so weill have in the middle 2*x* a number
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  • x²+2*x*8+64 = -44+64
  • (x+8)² = 20

Now that we have completed the perfect square let's solve the equation

  • (x+8)² = 20
  • x+8 = \sqrt{20}or x+8= -\sqrt{20}
  • x = -8+\sqrt{20} or x =  -8- \sqrt{20}

so the first answer is the correct one

64; 8 +/- \sqrt{20}

7 0
3 years ago
Read 2 more answers
PLEASE HELP PLEASE ASAP​
Nonamiya [84]

Answer:

0, 7, -10

Step-by-step explanation:

0, -7, 7, -10, -9, -10, 7, 0, 4

Two 0

one -7

Two 7

Two -10

one 4

0, 7, and -10 are the only ones to appear the most

3 0
3 years ago
Does the (1,2) <br> satisfy the equation Y equals 3X
AlekseyPX
No. When you plug in x and y you get 2=3
8 0
3 years ago
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