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2 years ago

Which geometric figure has 72 rotational symmetry?

Mathematics

2 answers:

tiny-mole [99]2 years ago

6 0

Answer:

Step-by-step explanation:

Pentagon

So, Pentagon has 72 degree rotational symmetry.

Lana71 [14]2 years ago

6 0

Answer:

Pentagon can i have brainlyist.

Step-by-step explanation:

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In the figure on the right, Triangle EFG is congruent to Triangle LMN. Find the value of x. Then describe the Transformations th

Reptile [31]

Answer:

Step-by-step explanation:

ΔEFG ≅ΔLMN

Therefore, MN = FG { corresponding part of congruence triangle}

x + 3 = 13

x = 13 - 3

x = 10 cm

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3 years ago

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Rectangle PQRS has vertices at P(3,5), Q(8,5), R(8,0) and S. The coordinates of point S are

pashok25 [27]

I would have guessed point S is (3,0).

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2 years ago

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Please help ASAP ;)

Taya2010 [7]

Answer: use PEMDAS

Step-by-step explanation:

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3 years ago

The average weight of a newborn panda is 0.2, or 2/10 pound. Between what two integers is the weight of a newborn panda?

sweet-ann [11.9K]

Answer:

$\frac{2}{10}$ lies between 0 and 1.

Step-by-step explanation:

We must have in mind that given average weight of a newborn panda is a non-integer rational number, such that lies between two integer rational number. In other words, this number must satisfy the following condition:

$n < \frac{a}{b} < n +1$ , $n, a, b \in \mathbb{N}_{O}$

$\mathbb{N}_{O} = \mathbb{N}\,\cup\,{\{0\}}$

Which is now developed mathematically to deduce a useful expression to find integers:

1) $n < \frac{a}{b} < n +1$ Given

2) $n \cdot 1 < \frac{a}{b} < n\cdot 1 + 1$ Modulative property

3) $n \cdot (b\cdot b^{-1}) < a\cdot b^{-1} < n \cdot (b\cdot b^{-1}) + b\cdot b^{-1}$ Existence of Multiplicative inverse/Definition of division.

4) $(n\cdot b)\cdot b^{-1} < a\cdot b^{-1}< [(n+1)\cdot b] \cdot b^{-1}$ Commutative, Associative and Distributive properties.

5) $n\cdot b < a < (n+1)\cdot b$ Compatibility with Multiplication/Existence of Multiplicative Inverse/Modulative Property/Result.

If we know that $a = 2$ and $b = 10$ , the following inequation is formed:

$10\cdot n < 2 < 10\cdot (n+1)$

It is quite evident to conclude that $\frac{2}{10}$ lies between 0 and 1.

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3 years ago

Factorise 2a – 4a3 + 6abc

Viefleur [7K]

The answer for this will be

2a(1-2a ²+3bc)

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3 years ago