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Ganezh [65]
3 years ago
9

If a circle is cut from a square piece of plywood, how much plywood would be left over? Use 3.14 for pi

Mathematics
1 answer:
Elanso [62]3 years ago
7 0
20^{2} -3.14*10^{2} = 400 - 314 = 86;
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WILL<br><br><br><br><br> GIVE<br><br><br><br><br> BRAINLIST <br> ..<br> .<br> .
Jobisdone [24]
Yep it’s B or 20 outcomes
7 0
3 years ago
84is 60% of what number
Vikentia [17]

Answer:

140

Step-by-step explanation:

\frac{84}{x} = \frac{60}{100}

Cross Multiply

84 · 100 = 60x

8400 = 60x

\frac{8400}{60} = \frac{60x}{60}

x = 140

8 0
3 years ago
Thirty elves would like to build a skating ring so they can all use it at the same time. Santa tells them, they need at least 40
Delicious77 [7]

Answer:

The Possible dimension of the ring could be;

20 ft × 60 ft

25 ft × 48 ft

30 ft × 40 ft

60 ft × 20 ft

48 ft × 25 ft

40 ft × 30 ft

Step-by-step explanation:

Given:

Number of skaters = 30

Area for each skater = 40 sq ft

We need to find the dimension of rectangular ring the are going to build.

Now we know that they building the skating ring such that they all can use at same time.

Hence if the all use at same time then we will find the total area first.

Total area can be calculated by multiplying Number of skaters with area required for each skaters.

Framing the equation we get;

Total area = 30\times 40 = 1200 \ ft^2

Hence The total area of the rectangular ring would be 1200 sq. ft.

Now we know that Total area is equal to product of length and width.

length\times width =1200ft^2

1200 can be written as = 20 × 60, 25 × 48, 30 × 40,60 × 20,48 × 25,40 × 30

Hence the Possible dimension of the ring could be;

20 ft × 60 ft

25 ft × 48 ft

30 ft × 40 ft

60 ft × 20 ft

48 ft × 25 ft

40 ft × 30 ft

3 0
3 years ago
What is the coefficient of the 3rd term of : 2x^3 + 3x^2 - 5x + 14
LenaWriter [7]

Answe

Step-by-step explanation

:dominio x∈

5 0
3 years ago
The diagonal of the rectangle is 13 inches, and the side lengths of the triangles are Pythagorean triples. To the nearest tenth,
frosja888 [35]
1) A Pythagorean triples is a set of three integers, a, b, c,  that follow the rule a^2 + b^2 = c^2

2) Assumin c is the diagonal of your rectangle and the hypotenuse of the triangles, you are looking this:

13^2 = a^2 + b^2

=> 169 = a^2 + b^2

Two integer numbers that meet that equality are 5 and 12:

5^2 = 25
12^2 = 144
=> 5^2 + 12^2 = 25 + 144 = 169

 => 13^2 = 5^2 + 12^2

Now that you have the three numbers you know the dimensions of the figure and can calculate the area of the shaded part. I cannot do that for you becasue you did not include the figure.
3 0
3 years ago
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