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san4es73 [151]
3 years ago
15

In order to make a circular sign, you decide to use a square piece of plywood and trim off as little of the area as possible. Wr

ite a simplified formula for A, the least possible area of wood that you will not use, given that one edge of the square has length W?

Mathematics
1 answer:
andrezito [222]3 years ago
8 0
The area of the square is W^2

The area of the circle will be PI * radius^2
where the radius = (W/2)
So, the circle area = PI * (W/2)^2 = PI * (W^2 /4)

If square has a 12 inch side its area is 144 square inches.
The circle would be PI * (144 / 4) = PI * 36 =
<span> <span> <span> 113.0973355292 </span> </span> </span> square inches

So, A = (W^2) - (PI * (W^2 / 4)


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Cube-shaped blocks are packed into a cube-shaped storage container. ​ The edge length of the storage container is 212 feet. The
igor_vitrenko [27]

Answer:

The volume of cube-shaped block is 0.125 cubic feet.

Step-by-step explanation:

We are given the following in the question:

Edge length of storage container =

2\dfrac{1}{2}\text{ feet}

Edge length of block =

\dfrac{1}{5}\times \text{Edge length of container}

Putting value we get,

Edge length of block =

\dfrac{1}{5}\times 2\dfrac{1}{2}\\\\=\dfrac{1}{5}\times \dfrac{5}{2}\\\\=\dfrac{1}{2}\text{ feet}

Volume of cube-shaped block = Volume of cube

V = \text{(Edge)}^3\\\\V =(\dfrac{1}{2})^3\\\\V = \dfrac{1}{8}\text{ cubic feet}\\\\V = 0.125\text{ cubic feet}

Thus, the volume of cube-shaped block is 0.125 cubic feet.

7 0
3 years ago
Jean noticed that the tar pit bubbled more on warm days than on cool days or at night. Is the air temperature the dependent vari
andreev551 [17]
It's indepentent. In fact, the tar pit's temperature DEPENDS (dependent variable) by the air's temperature (independent variable).
6 0
2 years ago
Christie needs 54.3 Square feet of laminate wood suppose each square foot of laminated wood cost $.60 find the amount she has to
Irina18 [472]
It will cost $33.

Since wood cost $ .60 sq ft, you can assume she needs to buy 55 sq ft because she will need to buy enough to have 54.3 square ft.

55 x $ .60 = $33

$32.58 would be he total for the 54.3 sq ft and .42 cents would be for the left over .7 sq ft that she didn’t use
7 0
2 years ago
1/8th of Rs.1,64,350
aleksklad [387]

Answer:

₹20543.75

Hope you got your answer.

6 0
2 years ago
Read 2 more answers
Find the volume of a right circular cone that has a height of 15.6 cm and a base with a radius of 7.8 cm. Round your answer to t
sergey [27]

Answer:

356.8cm3

Step-by-step explanation:

Volume of a cone= 1/3 * base area * height.

Note: don't be confused by right circular cone ; a cone is gotten from a cylinder by dividing it into three parts. One from the right vertex slanted to the middle of the base; another from the left vertex slanted to the middle of the base and the remaining portion with the surface base at the top.

Going forward; base area =pi * raduis * raduis [ area of a circle; the base is a circle]

Volume= 1/3 * (3.142 * 7.8 * 7.8 *5.6) = 356.83cm3

Volume= 356.8cm3 [ to the nearest tenth].

Tenth means 1/10= 0.1; that is value after the decimal point.

5 0
3 years ago
Read 2 more answers
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