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4 years ago

Solve P = 2 (l + w) for w.w =

Mathematics

1 answer:

ratelena [41]4 years ago

7 0

To solve for w, you need to isolate/get the variable "w" by itself in the equation:

P = 2(l + w) Divide 2 on both sides

$\frac{P}{2} =\frac{2(l+w)}{2}$

$\frac{P}{2} =l+w$ Subtract l on both sides to get "w" by itself

$\frac{P}{2} -l=l-l+w$

$\frac{P}{2} -l=w$

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<span>–3 + 4i</span>

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If the sum of a number and 6 is multiplied by 5, the result is same as 9 times the number decreased by 2. find the number.

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Answer:

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3 years ago

A deck has side lengths 16 feet, 18 feet, 16 feet, 8 feet, and 12 feet.

BigorU [14]

The area of the deck is 413 square feet

<h3>How to determine the area of the proposed deck?</h3>

Start by calculating the area of the outer rectangle using:

Area = Length * Width

This gives

Area1 = (18 + 12) * (16 + 8)

Area1 = 720

Next, calculate the area of the inner rectangle using:

Area = Length * Width

This gives

Area2 = 16 * (18 + 8)

Area2 = 416

Subtract these areas

A1 = Area1 - Area2

A1 = 720 - 416

A1 = 304

Next, calculate the area of the outer semicircle using:

Area = 0.5πR²

This gives

Area1 = 0.5 * 3 * (12-1)²

Area1 = 181.5

Next, calculate the area of the inner semicircle using:

Area = 0.5πr²

This gives

Area2 = 0.5 * 3 * (7)²

Area2 = 73.5

Subtract these areas

A2 = Area1 - Area2

A2 = 181.5 - 73.5

A2 = 108

Add A1 and A2

A = 304 + 108

Evaluate the sum

A = 412

Hence, the area of the deck is 413 square feet