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lara31 [8.8K]
3 years ago
11

Find the surface area of the square pyramid below.

Mathematics
1 answer:
valentina_108 [34]3 years ago
4 0

Answer:

728 m^2

Step-by-step explanation:

There are 5 faces of the square pyramid.

You have to calculate area of each face and add them to find surface area.

Bottom face is a square, so

area = 14^2 = 196 m^2

All the other faces are triangle with same area, so

4 × triangle area

4 × ((1/2)×14×19)

4 × 133

532 m^2

Now add those areas,

(196 + 532) m^2

728 m^2

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blagie [28]
The answer is C. 0.14
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2 years ago
2x = 4y + 8, x - 2y = 4
Evgen [1.6K]

Answer: x = 8, y = 2, coordinates (8,2)

Step-by-step explanation:

2x = 4y + 8 (divide by 2 to get value of x)

x = 2y + 4

(now substitute x into the second equation to find value of y)

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2y - 2y = 4 - 4 (divide by 2 to get value of y)

y - y = 2 - 2

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Now plug in value of "y" to get value of "x".

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3 0
2 years ago
A company makes 140 bags.
Igoryamba

Answer: 41/75 or 54.67%

Step-by-step explanation:

Buttons --- yes,  zips --- yes = 45  (compute as 150 - 37 - 45 - 23)

Buttons --- yes,  zips --- no  = 37

Buttons --- no, zips --- yes = 45

Buttons --- no, zips --- no = 23

Therefore, 82 out of 150 bags have buttons so probability = 82/150 = 41/75

7 0
2 years ago
Find the slope of the lines joining each of the following pair of points.<br> (1,7) and (4,2)
Damm [24]

Answer:

-5/3

Step-by-step explanation:

We can find the slope using the slope formula

m = ( y2-y1)/(x2-x1)

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8 0
3 years ago
What is the difference? <br> 4/3-7/9
Alecsey [184]

Answer:

Step-by-step explanation:

4/3-7/9=12/9-7/9=5/9.

6 0
3 years ago
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