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Stels [109]
3 years ago
8

Have to finish before I sleeeep

Mathematics
2 answers:
tatyana61 [14]3 years ago
8 0

Answer:

2) option 2

3) option 3

4) option 4

Step-by-step explanation:

2) sqrt[(3-2)² + (2-0)²]

= sqrt(1+4)

= sqrt(5)

3) Mp = (x1+x2)/2, (y1+y2)/2

= (-1+1)/2 , (0+2)/2

4) (7+9)/2, (4-1)/2

16/2 , 3/2

(8, 3/2)

Elena L [17]3 years ago
7 0

Answer and Step-by-step explanation:

Hello!

Let's~answer~this~question!

<u><em>Answer for the first question :</em></u>

→ We~have~that:

x_{1}=3,

y_{1}=2,

x_{2}=2 ,

y_{2}=0

So,~d=\sqrt{(2-(3))^2+(0-(2))^2}=\sqrt{5}

Thus, ~option~ "B"~ is~ correct!

<u><em>_________________________________________________</em></u>

<u><em>Answer for the second question :</em></u>

→ The~midpoint~for~two~points~P=(x_{1}, y_{1})~and~Q=(x_{2}, y_{2}) ~is M=(\frac{x_{1}~+~x_{2}  }{2} ,\frac{y_{1}~+~y_{2}  }{2})

→ We~have~that:

x_{1}=-1,

y_{1}=0,

x_{2}=1,

y_{2}=2

So, M=(\frac{(-1)+(1)}{2} ,\frac{(0)+(2)}{2})=(0,1).

Thus,~option~"C"~is~correct!

<u><em>_________________________________________________</em></u>

<u><em>Answer for the third question :</em></u>Just~like~the~previous~equation,~the~midpoint~for~two~points~P=(x_{1}, y_{1})

and~Q=(x_{2}, y_{2}) ~is~M=(\frac{x_{1}~+~x_{2}  }{2} ,\frac{y_{1}~+~y_{2}  }{2})

→ We~have~that:

x_{1}=7,

y_{1} =4,

x_{2}=9,

y_{2}=-1

So, M=(\frac{(7)+(9)}{2} ,\frac{(4)+(-1)}{2})=8,\frac{3}{2} ~or,~(8,1.5)

Thus,~option~"D"~is~correct!

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