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inna [77]
3 years ago
13

Simplify (4r - s) - (r + 2s) + (3r - s) A.) 6r - 3s B.) 8r C.) 3r - 2s D.) 6r - 4s

Mathematics
1 answer:
docker41 [41]3 years ago
6 0

Answer: D

Step-by-step explanation:

4r-r+3r can be simplified to just 6r

-s-2s-s can be simplified to just -4s

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Is a dilation an example of a rigid motion. Explain your response.
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Answer:

This differs from non-rigid motion, like a dilation, where the size of the object can increase or decrease. When working with rigid motion, you will typically see two objects that show the transformation.

Step-by-step explanation:

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How do you write the number 7 × 10-2 in standard form?<br> a. 7<br> b. 0.0007<br> c. 700<br> d. 0.07
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Solve show all steps what is 7x-28≥-7
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Answer:

x≥3

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7x-28+28≥-7+28

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4 years ago
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Which equation describes a parabola that opens left or right and whose vertex is at the point (h, v)?
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Vertex is at the point ( h , v ) 
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The mapping of DEFG to D'E'F'G' is shown. 2 parallelograms have identical side lengths and angle measures. The second parallelog
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Answer:

(A)EF corresponds to E'F'

(C)∠EDG Is-congruent-to ∠E'D'G'

(D)∠DEF Is-congruent-to ∠D'E'F'

(F)The transformation is a rigid transformation.

Step-by-step explanation:

Given:

  • Parallelogram DEFG is mapped to D'E'F'G'
  • DEFG and D'E'F'G' have identical side lengths and angle measures.

The following applies:

  • EF corresponds to E'F'
  • ∠EDG Is-congruent-to ∠E'D'G'
  • ∠DEF Is-congruent-to ∠D'E'F'

Now, a rigid transformation is a transformation of the plane that preserves length. Since the two parallelograms have identical side lengths:

  • The transformation is a rigid transformation.

Note that a reflection is an isometric transformation. Therefore the statement "The transformation is not isometric" is INCORRECT.

FG and GD are adjacent sides, therefore they may not necessarily be congruent. Thus FG does not corresponds to G'D'

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3 years ago
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