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geniusboy [140]
3 years ago
9

Need some major help on simplifying non-perfect roots, help?

Mathematics
2 answers:
saw5 [17]3 years ago
6 0
First do operations inside the bracket, following raised to half
yuradex [85]3 years ago
6 0
The last answer is correct.

First you divide 128 by 2 and get 64

The square root of 64 is 8 which means you bring out an 8, this eliminated the first 2 answers.

Then you use the reciprocal strategy to cancel the exponential values and get xsquared on the bottom and y to the first power on the top. since xsquared can be square rooted, it is no longer under the root, which just leaves Y.
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harkovskaia [24]

Answer:

  C.  2.0 < t < 2.5

Step-by-step explanation:

  time = distance / speed

The circumference of the lake is given by ...

  C = πd = 2π miles ≈ 6.28 miles

Then Johanna's time is ...

  (6.28 mi)/(3 mi/h) ≈ 2.09 h

This time is in the interval (2, 2.5), so matches choice C.

___

<em>Alternate solution</em>

If we take pi to be 3, then this boils down to ...

  2×3/3 = 2 . . . hours

Pi is on the order of 5% more than 3, so her time will be on the order of 5% more than 2 hours, or just above 2, but not as great as 2.5 hours. This sort of estimating can get you to the correct answer without a calculator.

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3 years ago
PLZ ANSWER ILL GIVE BRAINILEST2 box plots. The number line goes from 26 to 36. For Pleasantville Middle School, the whiskers ran
Svetach [21]

Answer:

I believe the answer is- The mean and MAD can accurately describe the "typical" value in the symmetric data set.

Step-by-step explanation:

The other answers don't make sense because the mean and MAD are being used for symmetrical distributions and asymmetrical means uneven distributions.

6 0
3 years ago
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2/3 to the fourth power
Stella [2.4K]
The correct answer is 16/81. Hope this helps.
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Which statements are true 25 (0)=25, 25(1)=25, 25+0=25, 25+1=25
vazorg [7]
25(1)=25
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3 0
2 years ago
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Answer:

C

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See attached graph

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