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3 years ago

Find the sum -57 + 57

Mathematics

2 answers:

Talja [164]3 years ago

5 0

Answer:

Step-by-step explanation:

so, -57 cancels out the entire equation because they're both the same number, one's just a positive and the other is a negative.

so -57 + 57 = 0

Mice21 [21]3 years ago

4 0

Answer:0

Step-by-step explanation:

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The area (in square inches) of a rectangle is given by the polynomial function A(p) = p2 + 9p + 20. If the length of the rectang

boyakko [2]

Answer:

$Width = p + 4$

Step-by-step explanation:

Given

$Area = p^2 + 9p + 20$

$Length = p + 5$

Required

Determine the width

The area of a rectangle is:

$Area = Length * Width$

This gives:

$p^2 + 9p + 20= (p+5)* Width$

Expand

$p^2 + 4p + 5p + 20= (p+5)* Width$

Factorize

$p(p + 4) + 5(p + 4)= (p+5)* Width$

$(p + 5) (p + 4)= (p+5)* Width$

Divide both sides by p + 5

$p + 4= Width$

$Width = p + 4$

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3 years ago

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Shalnov [3]

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3 years ago

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riadik2000 [5.3K]

Answer:

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Step-by-step explanation:

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3 years ago

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zhannawk [14.2K]

Answer:

Step-by-step explanation:

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3 years ago

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The perimeter of a quadrilateral (four-sides polygon) is 50 inches. The longest side is three times as long as the shortest side

kkurt [141]

The side lengths of quadrilateral are 21 inches; 11 inches; 11 inches; 7 inches.

<u>SOLUTION:</u>

Given, the perimeter of a quadrilateral (four-side polygon) is 50 inches.

Let the length of shortest side be n inches. The longest side is three times as long as the shortest side.

That is, length of largest side = 3n inches

The other two sides are equally long and are 4 inches longer than the shortest side.

Then, length of remaining two sides = 4 + n inches

We have to find the length of all four sides.

Now, we know that, perimeter = 50 inches

$\begin{array}{l}{\rightarrow \text { Sum of all sides }=50} \\\\ {\rightarrow n+3 n+n+4+n+4=50} \\\\ {\rightarrow n+3 n+n+n=50-4-4} \\\\ {\rightarrow 6 n=42} \\\\ {\rightarrow n=7}\end{array}$

So, length of sides will be,

$7 \text { inches; } 3\times7=21 \text { inches; } 7+4=11 \text { inches; } 7+4=11 \text { inches. }$

6 0

4 years ago

Find the sum -57 + 57​

Find the sum -57 + 57