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taurus [48]
3 years ago
10

Are a parallelogram and a pentagon always sometimes or never similar

Mathematics
2 answers:
Vikentia [17]3 years ago
5 0
Never similar. Because a pentagon does not have a parallel side to it. Hope this helps. 
erastovalidia [21]3 years ago
3 0
They are never similar. In order for two shaped to be similar, they must have the same number of sides, and the angles all must be the same. The only difference between two similar shapes is that their side lengths proportionally larger or smaller.

Since a parallelogram has 4 sides, and a pentagon has 5 sides, they can never be similar.
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A semicircular flower bed has a diameter of 3 metres.
Kaylis [27]

Answer:

3.5 m^2

Step-by-step explanation:

If the shape is half of a circle, you will be using this formula: A = \frac{1}{2} π r^2

Your radius is half of the diameter. r = d/2 = 3/2 = 1.5

Substitute r = 1.5 into the formula.

A = \frac{1}{2} π 1.5^2

A = \frac{1}{2} (3.14) 1.5^2

Use your calculator to find the answer and round your answer.

3.5

3 0
3 years ago
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7m + 2 = 6n - 5<br> Write a formula for f(m) in terms of m.
vlada-n [284]

Answer:  m = 6/7n-1

Step-by-step explanation: to get 7m alone dirst we must subtract 2 from both sides so 2-2 = 0 and -5 - 2= -7 so 7m= 6n-7 and divide both sides by 7 to get m alone so 6n divided by 7 = 6/7n and -7 divided by 7 equals -1 so we're left with m= 6/7n-1

8 0
3 years ago
Please help me put these in order
Bezzdna [24]

100

90

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7 0
2 years ago
Can someone help me solve this???
Vlad [161]
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3 0
3 years ago
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Suppose that f is a sine function ... look at the picture
Triss [41]

Answer:

f(3π/4) = -π

A = π

b = 2

Step-by-step explanation:

Given that the function follows the form: f(x) = A sin(bx), then f(0) = 0. Given that the period is π, then at x = π/4 the function reaches a maimum, at x = π/2, f(x) = 0, and at x = 3π/4, f(x) reaches a minimum, which have to be π*(-1) = -π

Given the general equation: f(x) = A sin(bx), its period is calculated as:

period = 2π/b

which is equal to π, then:

2π/b = π

b = 2

Replacing x = π/4 into the equation of the function, we get:

A sin(2(π/4)) = π

A sin(π/2) = π

A = π

8 0
3 years ago
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