The area of a square deck is w²+10w+25. what is the side length of the deck. if w=4, what is the area and what is the perimeter.

For the given square area expression,  the Area of Square is 81 unit²  And the perimeter of square is 36 units

Step-by-step explanation:

Given as :

The area of a square deck is w² + 10 w +25

The value of w = 4

Let the side length of deck = S

Now put the value to w in given square area

I.e w² + 10 w +25

Or, (4)² + (10 × 4) + 25

Or,  16 + 40 + 25

So, Area of square with side s = 81 unit²

∴ Area of square = side × side

Or, 81 unit² = s²

∴ s = = 9 unit

So , Side  = 9 unit

Now perimeter of square = 4 × side

I.e     perimeter of square = 4 × 9

Or,     perimeter of square = 36 unit

Hence for the given square area expression,  the Area of Square is 81 unit²  And the perimeter of square is 36 units    Answer

Each Side of the squared deck = (w + 5)

If w = 4, the area of the square =  81 sq units

             perimeter of the square = 36 units,

Step-by-step explanation:

The area of the square deck  is

Now, Area of the Square  is  

Factorizing the given expression, we get

or,

or,

⇒

⇒ The area of the Square deck is

Comparing it with the formula for area,

we get each Side of the squared deck = (w + 5)

Now, if w =  4, then each side = 4+ 5 = 9 units

Hence, the area of the square =  9 x 9 = 81 sq units

Perimeter of the squire =  4 x SIDE =  4 x 9 = 36 units

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

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=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

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=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

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+

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=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

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add

$

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8

100

×

$

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=

$

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$

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