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Arisa [49]
3 years ago
10

Which of these numbers are perfect squares or perfect cubes? Select the THREE answers that apply. 8 16 32/ 64 128 6 Omestian 12​

Mathematics
1 answer:
Murljashka [212]3 years ago
8 0

Answer:

  8, 16, 64

Step-by-step explanation:

  8 = 2^3 . . . a perfect cube

  16 = 4^2 . . . a perfect square

  32 = 2^5 . . . neither a cube nor a square

  64 = 2^6 = 4^3 = 8^2 . . . both a perfect cube and a perfect square

  128 = 2^7 . . . neither a cube nor a square

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faust18 [17]

Answer:

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Step-by-step explanation:

The solution is correct up to the step 2x = 6x

2x = 6x

Subtract 2x from both sides.

0 = 4x

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You cannot divide both sides by x since x could be zero, and in fact, it is.

Answer: b. When you divide both sides by 2x = 6x it could lead us to think that there is no solution while, in fact, the solution is x = 0.

3 0
3 years ago
One shelf will hold 45 pounds of boxes. If you have to store 270 pounds of boxes, how many shelves will you need?
arlik [135]

Hi!

We will solve this using ratios, like this:

1 shelf holds 45 pounds

x shelves hold 270 pounds

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x = (270*1)/45

x = 270/45

x = 6

6 shelves will be needed to hold 270 pounds of boxes.

Hope this helps!

6 0
4 years ago
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Kisachek [45]

Answer:

x=14

Step-by-step explanation:

3 0
3 years ago
Austin is going for a walk. He takes 3 hours to walk 4.8 miles. What is his speed?
Alexxandr [17]
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geniusboy [140]

Answer:

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Step-by-step explanation:

4 students contribute 12$ Each.

So, total amount becomes 12 x 4 = 48$

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