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REY [17]
3 years ago
10

What is the volume of a sphere if it has a radius of 3 feet? (Use 3.14 for π.) 37.68 ft 3 904.32 ft 3 75.36 ft 3 113.04 ft 3

Mathematics
1 answer:
Alinara [238K]3 years ago
4 0
The answer is 113.04. Volume of a sphere is 4/3*pi*r³so 4/3*3.14*3³=113.04
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Calculate the area of a circle with radius of 3.5 (1dp) please help
olga2289 [7]
The area = r^2 *pi
So it's 3.5 * 3.5 which is 12.25 pi
 
3 0
3 years ago
Given: Circumscribed polygon ABCD AB=21, BC=24, CD=30 Find: AD AD = ____ units
dolphi86 [110]

Answer:

AD = 27 units

Step-by-step explanation:

In the above question, we have a circumscribed Polygon, were circle XYZ is inside the polygon ABCD

We were given the following side

AB=21 units

BC=24 units

CD=30 units

Side AB = AW + BW

21 units = x + 21 - x

Side BC = BX + CX

BX = BW , hence BX = 21 - x

Side BC = 21 units

24 = 21 - x + CX

CX = 24 - (21 - x)

CX = 24 - 21 + x

CX = 3 + x

Side CD = CY + DY

Note that: CY = CX, hence, CY = 3 + x

Side CD = 30 units

30 = 3 + x + DY

DY = 30 - (3 + x)

DY = 30 - 3 - x

DY = 27 - x

Side AD = AZ + DZ

Note also that:

AZ = AW , hence AZ = x

DY = DZ , hence DZ = 27 - x

Side AD = x + 27 - x

Side AD = 27 units

4 0
3 years ago
F'(-7, 13) was dilated by a scale factor of 2 about (-2, -5), the resulting image is___
AveGali [126]

The resulting image of the point F(x, y) = (- 7, 13) is F'(x, y) = (- 12, 31).

<h3>What is the resulting image of a point by rigid transformation?</h3>

In this problem we have a point that has to be transformed by a kind of rigid transform known as dilation, which is defined by the following equation:

P'(x, y) = O(x, y) + k · [P(x, y) - O(x, y)]             (1)

Where:

  • O(x, y) - Center of dilation
  • P(x, y) - Original point
  • P'(x, y) - Image
  • k - Scale factor

If we know that O(x, y) = (- 2, - 5), F(x, y) = (- 7, 13) and k = 2, then the resulting image is:

F'(x, y) = (- 2, - 5) + 2 · [(- 7, 13) - (- 2, - 5)]

F'(x, y) = (- 2, - 5) + 2 · (- 5, 18)

F'(x, y) = (- 2, - 5) + (- 10, 36)

F'(x, y) = (- 12, 31)

The resulting image of the point F(x, y) = (- 7, 13) is F'(x, y) = (- 12, 31).

To learn more on rigid transformations: brainly.com/question/28004150

#SPJ1

3 0
2 years ago
Sandra bought 4 pounds of sweet potatoes for $5.40. What is the cost per pound of the sweet potatoes?
zvonat [6]

Answer:

$1.35

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
If your teacher tells you to questions 38 through 51 in your math book for homework ,how many questions is that ?
eduard
That would be 13 questions!
8 0
3 years ago
Read 2 more answers
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