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SSSSS [86.1K]
2 years ago
11

Find the area to the nearest square foot of the shaded region below, consisting of a square with a circle cut out of it. Use 3.1

4 as an approximation for π. Need this ASAP

Mathematics
1 answer:
NeTakaya2 years ago
7 0

Answer:

22 square feet

Step-by-step explanation:

Area of shaded region = Area of square - Area of circle. The diameter of the circle is also the length of the side of the square as the circumference of the circle is on the circumference of the square.

Area of circle = 3.14 × r × r

r = 10 ÷ 2

= 5

Area of circle = 3.14 × 5 × 5

= 78.5

Area of square = length × length

Area of square = 10 × 10

= 100

Area of shaded region = Square - Circle

= 100 - 78.5

= 21.5

= 22 (to the nearest square foot)

I hope this helps :)

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Question 13
ArbitrLikvidat [17]

Answer:

C

Step-by-step explanation:

Here in this question , we are interested in calculating the total distance covered by the train in the 10 minutes that it ran.

From the first part of the question, we already know the distances in the first 5 minutes.

Now, to calculate the total distance in the second 5 minutes, we use the distance formula since we have the average speed and the time;

Mathematically; Total distance = average speed * time

From the question, average speed is 33km/h, while time is 5 minutes. To achieve a consistent unit, we convert 5 minutes to hours.

That would be 5/60 = 1/12 hours

So the total distance in the second 5 minutes is;

33 * 1/12 = 2.75 km

Now, to calculate the total distance traveled, let’s add up the distances in the first 5 minutes and convert to kilometers;

That would be;

68 + 127 + 208 + 312 + 535 = 1,250 m

Let’s convert this to km.

We simply divide by 1000 = 1250/1000 = 1.25 km

The total distance is thus ;

1.25 + 2.75 = 4 km

4 0
3 years ago
4x=2 solve for X<br><img src="https://tex.z-dn.net/?f=4x%20%3D%202%20solve%20for%20x" id="TexFormula1" title="4x = 2 solve for x
Bogdan [553]
X=1/2 hope this helps <3
3 0
3 years ago
Read 2 more answers
What is the value of x? Idk plz help me
FrozenT [24]
The answer is 55 degrees
8 0
3 years ago
Aura took three biology exams and has an average score of 87. Her second exam score was 11 points better than her first, and her
maksim [4K]

Answer:

103

Step-by-step explanation:

1. to find the second exam score you must add the first exam score yo the points . 87+11= 98

2 You repeat the same step ffg or the third exam score. 98+5= 103.

8 0
1 year ago
Please help. find the missing side of each triangle
Degger [83]

Answer:

x = √146 = 12.1 (nearest tenth)

Step-by-step explanation:

Apply pythagorean theorem, c² = a² + b², where,

c = x

a = √82 km

b = 8 km

Plug in the values

x² = (√82)² + 8²

x² = 82 + 64

x² = 146

x = √146 = 12.1 (nearest tenth)

4 0
3 years ago
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