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natita [175]
2 years ago
11

HELP PLEASE 18 POINTS

Mathematics
1 answer:
ICE Princess25 [194]2 years ago
6 0

Answer:

Step-by-step explanation:

line 1  m=y2-y1 / x2-x1  [formula for slope ]

m= 0 - (-3) / 8-(-4)

m= 3 /12      

m= 1/4  slope of line 1

line2  

m = 2-6 / 0-(-1)

m = -4 / 1

m = -4  slope of line 2

line 3

m = -4 - (-7)  / -3 -  6

m = 3 / -9

m = - 1/3  slope of line 3

lines 1 & 2   perpendicular b/c they are reciprocals with a sign change :)

lines 1 & 3     neither.. differet slopes and not reciprocals

lines 2 & 3  perpendicular  b/c they are reciprocals with a sign change :)

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KengaRu [80]

Answer:

Step-by-step explanation:

y=-x^{2} +36

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4 0
2 years ago
A square ceiling has an area of 360 square feet. Alex wants to put molding around the entire perimeter of the ceiling. Approxima
Blababa [14]

Answer:

Option C is correct

76 feet

Step-by-step explanation:

Area of square(A) is given by:

A =s^2

where, s is the side of the square.

As per the statement:

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⇒A = 360 square feet.

then;

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⇒s = \sqrt{360} =18.973666

Perimeter(P) of square is given by:

P = 4s

then;

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Therefore, 76 feet molding does he need.

7 0
3 years ago
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Serggg [28]
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6 0
3 years ago
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kupik [55]

Answer:

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hope this helped :)

7 0
2 years ago
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NNADVOKAT [17]

Answer:

Table C

Step-by-step explanation:

Now where is my Brainliest XD

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