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hichkok12 [17]
4 years ago
8

It is given that the area of a football field is 7.8 km².

Mathematics
2 answers:
hram777 [196]4 years ago
8 0

Answer:

Step-by-step explanation:

2437.5m

Wittaler [7]4 years ago
7 0

Answer:

2437.5m

Step-by-step explanation:

Assuming a rectangular shape, we have

Area=w×h, where w is the width anh h the length.

1km²=1000²m²=10⁶m²

7.8km²=7.8×10⁶=78×10⁵=3200×h

78×1000=32h

h=78000/32=2437.5m

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A scale drawing of a square object has a scale of 1 in. : 5 mm. The scale drawing has a length of 2.5 inches. Find the perimeter
luda_lava [24]

Answer:

Perimeter and area of drawing

Perimeter= 10 In

Area = 6.25 In²

Perimeter and area of object

Perimeter = 51.836 mm

Area = 167.936 mm²

Step-by-step explanation:

We are dealing with a square object, so let's talk about the drawing first.

The length of one side = 2.5 In

Perimeter of square= 4L

Perimeter = 4*2.5

Perimeter= 10 In

Area = L*L

Area = 2.5*2.5

Area = 6.25 In²

Letd note that 1 inch =

25.4 millimetres

So 2.5 Inch = 2.5 * 25.4

2.5 In = 63.5 mm.

25.4 mm is to 5mm

63.5 mm is to (63.5*5)/24.5

63.5mm is to 12.959 mm

So the length of actual object is 12.959mm

The perimeter = 4*12.959

Perimeter = 51.836 mm

Area = 12.959²

Area = 167.936 mm²

7 0
3 years ago
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Equation y = x2 - 1
Sidana [21]

Answer:

There is<em> no solution</em> to this problem.

Step-by-step explanation:

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8 0
3 years ago
Is the following sentence a statement or not a statement?
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4 0
4 years ago
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6 0
3 years ago
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Please help find “b” for me!
svp [43]

Answer:

12

Step-by-step explanation:

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3 years ago
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