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3 years ago

The midpoint of AB is (-2,-1). If A is the point (3,1) what are the coordinates of point B?

Mathematics

1 answer:

goblinko [34]3 years ago

7 0

I think the answer is (-7,-3)

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Find the perimeter of the quadrilateral.

levacccp [35]

Question:

Find the perimeter of the quadrilateral. if x = 2 the perimeter is ___ inched.

The complete figure of this question is attached below

Answer:

<h3>The perimeter of the quadrilateral is 129 inches</h3>

Solution:

The complete figure of this question is attached below

Given that, a quadrilateral with,

Side lengths are:

$4x^2 + 8x\ inches \\\\3x^2-5x+20\ inches \\\\7x + 30\ inches \\\\31\ inches$

The values of the side lengths when x = 2 are

$(4x^2+8x)=(4\times 2^2+8\times 2)=(4\times 4+16)=16+16=32\ inch\\\\(3x^2-5x+20)=(3\times 2^2-5\times 2+20)=(3\times 4-10+20)=12+10=22\ inch\\\\(7x+30)=(7\times 2+30)=14+30=44\ inch$

Perimeter of a quadrilateral = Sum of its sides

Perimeter of given quadrilateral = 32 + 22 + 44 + 31 = 129 inches

Thus perimeter of the quadrilateral is 129 inches

5 0

2 years ago

Just need help with 4. Please

konstantin123 [22]

Answer:

11 3/5*9*12 1/2=1,305

1,305 cubic meters

Hope I helped.

Step-by-step explanation:

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3 years ago

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VLD [36.1K]

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Step-by-step explanation:

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Answer:

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