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3 years ago

△DEF is mapped to △D′E′F′ using the rule (x,y)→(x,y+1) followed by (x,y)→(x,−y).

2 answers:

5 0

Answer:△DEF is congruent to △D′E′F′ because the rules represent a translation followed by a reflection, which is a sequence of rigid motions.

Step-by-step explanation:

A rigid motion of the plane is a motion which maintain distance.

Translation is a kind of rigid motion used in geometry to trace a function that moves an object a particular distance.

A reflection is also a kind of rigid motion . It is mainly a 'toss' of a shape across the line of reflection.

So,△DEF is mapped to △D′E′F′ using the rule (x,y)→(x,y+1) ( which is a translation.) followed by (x,y)→(x,−y)(which is reflection),therefore it is a sequence of rigid motions.

Sholpan [36]3 years ago

4 0

ΔDEF is congruent to ΔD'E'F' because the rules represent a translation followed by a reflection, which is a sequence of rigid motions.

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Step-by-step explanation:

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3 years ago

On a coordinate plane, 2 straight lines are shown. The first solid line has a positive slope and goes through (0, negative 2) an

ExtremeBDS [4]

Answer:

$y\geq x-2$

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Step-by-step explanation:

step 1

Find the equation of the first inequality

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The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

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$m=\frac{0+2}{2-0}$

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The equation in slope intercept form is equal to

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we have

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$b=-2$ ---> the y-intercept is given

substitute

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Remember that

Everything to the left of the solid line is shaded

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step 2

Find the equation of the second inequality

Find the equation of the second dashed line

we have the ordered pairs

(0,2) and (4,0)

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The formula to calculate the slope between two points is equal to

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Remember that

Everything below and to the left of the line is shaded

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see the attached figure to better understand the problem

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3 years ago

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Answer:

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3 years ago

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zavuch27 [327]

Answer:

Step-by-step explanation:

slope of required line=5

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2 years ago

Un submarino se encuentra 50m por debajo del nivel del mar y comienza a subir 2m cada 5 minutos ¿a que profundidad se encuentra

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Answer:

a) El submarino se encuentra a una profundidad de 26 metros una hora después de haber comenzado el ascenso.

b) Al submarino le falta 1 hora y 5 minutos para llegar a la superficie.

Step-by-step explanation:

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