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Vladimir79 [104]
3 years ago
7

You are making an umbrella that is shaped like a regular octagonal pyramid.

Mathematics
1 answer:
guajiro [1.7K]3 years ago
8 0

Answer:

80 ft²

Step-by-step explanation:

From the diagram

The umbrella has a total of 8 triangle.

Applying

A = 8(bh)/2

A = 4bh...................... Equation 2

Where A = Amount of fabric, b = base of one of the triangle in the octagonal pyramid, h = height of the triangle.

From the diagram,

Given: b = 4 ft, h = 5 ft

Substitute these values into equation 2

A = 4×4×5

A = 80 ft²

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Find the equation of the line using the exact numbers
Anit [1.1K]

Answer:

y = -0.25x - 6

Step-by-step explanation:

You can either just read off the slope m = -0.25 and the intersection with the vertical n = -6 or you form a system of equations from points you choose on the graph. For example:

(0,-6);(4,-7)

The general equation for a line:

y = m*x + n

The two points on the graph form a system of two equations:

1. -6 = m*0 + n

2. -7 = m*4 + n

You can read off n right away fro equation 1:

n = -6

Plugging n into equation 2:

-7 = m*4 - 6 => -1 = m*4 => m = -1/4

3 0
2 years ago
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Which of the following could be<br> the sum of exactly three<br> consecutive even integers?
OLEGan [10]

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Step-by-step explanation:

8 0
2 years ago
Can you guys distribute -9n-8-3n=6n-8 and figure out how many solutions it has plz
nydimaria [60]
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7 0
3 years ago
What is the equation of the line that passes through the point (5,6) and has a slope of 2 ?
Serhud [2]

Answer:

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Step-by-step explanation:

The equation of a line in slope- intercept form is

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Here m = 2, thus

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To find c substitute (5, 6) into the partial equation

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vfiekz [6]

Answer:

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