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Zigmanuir [339]
4 years ago
9

a contractor finds that crew A takes 5 1/2 hours to construct a retaining wall and crew B can do the same job in 8 1/2 hours. if

crew A and crew B work together how long will it take them to construct the retaining wall
Mathematics
1 answer:
o-na [289]4 years ago
4 0

Answer:

14hrs

Step-by-step explanation:

5 1/2+8 1/2

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Answer:

31√3

Step-by-step explanation:

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➡ 93/√3 × √3/√3 = 93√3/3 ➡ 31√3

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Read 2 more answers
Figure 1 and figure 2 are two congruent parallelograms drawn on a coordinate grid as shown below:
LenKa [72]

Answer:

  (a)  Reflection across the y-axis, followed by translation 10 units down

Step-by-step explanation:

Figure 2 is not a reflection across the origin of Figure 1, so neither of the double reflections will map one to the other.

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Figure 1 is mapped to Figure 2 by reflection over the y-axis and translation down 10 units.

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