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2 years ago

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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Answer:

Step-by-step explanation:

$y=-x^{2} +36$

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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

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Step-by-step explanation:

Area of square(A) is given by:

$A =s^2$

where, s is the side of the square.

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A square ceiling has an area of 360 square feet.

⇒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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3 years ago

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Serggg [28]

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3 years ago

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kupik [55]

Answer:

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Step-by-step explanation:

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hope this helped :)

7 0

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NNADVOKAT [17]

Answer:

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Step-by-step explanation:

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