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zubka84 [21]
3 years ago
15

Select "Rational" or "Irrational" to classify each number;

Mathematics
2 answers:
irga5000 [103]3 years ago
8 0
A rational
B Irrational
C Irrational



~ThePirc
taurus [48]3 years ago
5 0

⇒A Number is said to be Rational, if it can be written in the form of \frac{p}{q}, otherwise it is Irrational.

⇒Decimal expansion of Rational is either Terminating or Non Terminating Repeating.For example ,0.234, 0.222222........,

⇒Decimal expansion of Irrational is always "Non Terminating non repeating".For example ,√2,√3, 0.23023002300023.......,

A.\rightarrow 0.144-----\text{Rational}\\\\B.\rightarrow \sqrt{0.144}\\\\=\sqrt{\frac{144}{1000}}\\\\=\frac{1.2}{\sqrt{10}}-----\text{Irrational}

⇒∵ ,√10, is Irrational.

C.\rightarrow \sqrt{0.0144}\\\\=\sqrt{\frac{144}{10000}}\\\\=\frac{12}{100}\\\\=0.12-----\text{Rational}

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Derek's design is a kite which starts with coordinates: A(2, 0), B(4,-2), C(2,-5) and D(0,-2). If he translates it 5 units to th
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Answer:

The answer is below

Step-by-step explanation:

Select the two answers

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b. B would be at (-1,5)

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d. It would end at the same spot if the original design was reflected across the x-axis,followed by a 180 degree rotation about the origin,followed by translation 1 unit to the left.

E.It would end at the same spot if the original design was reflected 180 degrees rotation about the origin,followed by a translation 3 unit up and translated 1 unit to the left

Select the two answers

a.A would be at (-3,5)

b. B would be at (-1,5)

c.C would be at (-5,8)

d. It would end at the same spot if the original design was reflected across the x-axis,followed by a 180 degree rotation about the origin,followed by translation 1 unit to the left.  

E.It would end at the same spot if the original design was reflected 180 degrees rotation about the origin,followed by a translation 3 unit up and translated 1 unit to the left

Solution:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are reflection, rotation, translation and dilation.

If a point X(x, y) is translated b units up and a units right, the new point is X'(x + a, y + b). If a point X(x, y) is translated b units down and a units left, the new point is X'(x - a, y - b)

If X(x, y) is reflected across the y axis, the new point is X'(-x, y)

If X(x, y) is reflected across the x axis, the new point is X'(x, -y)

If X(x, y) is rotated 180 degrees, the new point is X'(-x, -y)

If A(2, 0), B(4,-2), C(2,-5) and D(0,-2). If he translates it 5 units to the left and 3 units down the new point is A'(-3, -3), B'(-1, -5), C'(-3, -8), D'(-5, -5). If it is then reflected across the y axis, the new point is A"(3, -3), B"(1, -5), C"(3, -8), D"(5, -5).

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