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Alex Ar [27]
3 years ago
10

Answer the following 2 question ​

Mathematics
1 answer:
Zanzabum3 years ago
8 0

Answer:

Step-by-step explanation:

ii) Perimeter = 8 + 7 + 17 + 16 + (17-8) + (16-7)

                   =8+ 7 + 17 +16 + 9 + 9

                  = 66 m

Area = area of upper rectangle + area of lower rectangle

        = 8*7 + 16*9

       = 56 + 144

   = 200 m²

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2/13_

Step-by-step explanation:

6/39_=

_6÷39/3

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Step-by-step explanation:

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3 years ago
Three balls are packaged in a cylindrical container as shown below. The balls just touch the top, bottom, and sides of the cylin
lianna [129]
We know the following:
Cylinder volume: V₁ = π r² h
Ball (sphere) volume:V₂ = \frac{4}{3} π r³
where:
V - volume
r - radius of base of cylinder and diameter of ball
h - height of cylinder.

R = 13 cm ⇒ r = 13 ÷ 2 = 6.5
π = 3.14

a) Since balls touch all sides of cylinder (as shown in image), it can be concluded that height of cylinder is equal to sum of diameters of 3 balls and that radius of base of cylinder is equal to radius of ball:
h = 3 × r = 3 × 13 cm = 39 cm
r = 6.5 cm
So,
V₁ = <span>π r² h
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b. The total volume of three balls is the sum of volumes of each ball:
Vₐ = 3 × <span>V₂ 
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c. Percentage of the volume of the container occupied by three balls ould be expressed as ratio of volume of three balls and volume of cylinder:
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4 0
2 years ago
Read 2 more answers
A rectangles length is 1.5 times its width. The perimeter of the rectangle is four more than 3 times the length. What are the di
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Answer:

  8 by 12 units

Step-by-step explanation:

Let w represent the width of the rectangle. Then the length is 1.5w. The perimeter is 4 more than 3 times this, so is (3(1.5w) +4) = 4.5w+4

The perimeter is given by the formula ...

  P = 2(length + width)

Filling in the given values for the variables, we have ...

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  4 = 0.5w . . . . . . subtract 4.5w and collect terms

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The rectangle is 8 units wide and 12 units long. The perimeter is 40 units.

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What is 25 minus 30 ( practice question )
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