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Harlamova29_29 [7]
3 years ago
11

Select all radical expressions that are equivalent to 5 2/3

Mathematics
2 answers:
Alexandra [31]3 years ago
8 0

Answer:

1&3

Step-by-step explanation:

i just took the test

Dennis_Churaev [7]3 years ago
5 0

Answer:

1 and 3

Step-by-step explanation:

  1. (5^(1/3))^2 = 5^(2/3)
  2. (5^2)^(1/2) = 5^(2/2) = 5
  3. (5^2)^(1/3) = 5^(2/3)
  4. (5·3)^(1/2) = 5^(1/2)·3^(1/2)
  5. (5^(1/2))^3 = 5^(3/2)
  6. (5·2)^(1/3) = 5^(1/3)·2^(1/3)

___

Applicable rules are ...

\sqrt[n]{x^{m}}=x^{\frac{m}{n}}\\\\(x^{b})^{c}=x^{bc}\\\\(ab)^{c}=a^c\cdot b^c

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40% of a 12,000 acre forest is being logged how many acres will be logged
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12000 x 0.40 = 4800

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3 years ago
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A class survey in a large class for first-year college students asked, “About how many minutes do you study on a typical weeknig
Anika [276]

Answer:  (110.22, 125.78)

Step-by-step explanation:

The confidence interval for the population mean is given by :-

\mu\ \pm z_{\alpha/2}\times\dfrac{\sigma}{\sqrt{n}}

Given : Sample size = 463

\mu=118\text{ minutes}

\sigma=65\text{ minutes}

Significance level : \alpha=1-0.99=0.01

Critical value : z_{\alpha/2}=z_{0.005}=\pm2.576

We assume that the population is normally distributed.

Now, the 90% confidence interval for the population mean will be :-

118\ \pm\ 2.576\times\dfrac{65}{\sqrt{463}} \\\\\approx118\pm7.78=(118-7.78\ ,\ 118+7.78)=(110.22,\ 125.78)

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3 0
3 years ago
The sum of two numbers is 56, and their difference is 10. What are the numbers?
allochka39001 [22]
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Abraham has visited 10 countries already. He has a goal of visiting at least 50 countries. He plans to achieve this goal by visi
olasank [31]

Given :

Abraham has visited 10 countries already. He has a goal of visiting at least 50 countries.

He plans to achieve this goal by visiting 5 new countries per year (y) for the next several years.

To Find :

Which inequality and solution shows the amount of years that it will take for Abraham to meet his goal.

Solution :

Let, after x years Abraham visited y countries.

It is mathematically given as :

10 + 5x=y

Now, it is given that his goal is minimum of 50 countries.

So,

10+5x \ge 50\\\\5x\ge 40\\\\x \ge 8

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Answer:

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Step-by-step explanation:

a. 2i + 6j + 3i + 7j = 5i + 13j

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