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IrinaK [193]
3 years ago
6

Evaluate 5x - 9y if x = 8 and y=-3 Plz help like soon

Mathematics
1 answer:
Eva8 [605]3 years ago
3 0
I’m very positive it’s 67
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1. Is 5(x+1) the same as 5x+1? Explain your
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Answer:

Step-by-step explanation:

5(x+1), when expanded, becomes 5x + 5, which is ot the same as 5x + 1.

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The diagram represents a 12 cm by 4 cm rectangle.
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The answer is 48.


A= Hight x Width

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Find the Volumes?<br> I need help with both of these, please!!!
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Answer:

1. 36

2. 5390

Step-by-step explanation:

1. V=1wh/3

4 x 3 x 9 = 108

108/3 = 36

2. V=lwh/3

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Pierce works at a tutoring center on the weekends. At the center, they have a large calculator to use for demonstration purposes
miss Akunina [59]

Answer:

504 millimeters (or 50.4 cm)

Step-by-step explanation:

  • Width of key in student calculator = 14 millimeter (1.4 cm)
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<u><em>Thus, the demonstration calculator's dimensions are </em></u><u><em>twice</em></u><u><em> that of students' (in cm)</em></u>

<u><em /></u>

Also given, student calculator height as 252 millimeters (25.2 cm)

Thus demonstration calculator height will be twice of that = 50.4 cm (or 504 millimeters)

6 0
4 years ago
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