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3 years ago

1 Which expression is equivalent to 24 3? O 213 23/3 276 23/6 please help!

Mathematics

2 answers:

krok68 [10]3 years ago

8 0

Answer:

B 2 $\sqrt[3]{3}$

Step-by-step explanation:

24 ^ 1/3

WE know that (ab) ^ c = a^ c * b*c

24 ^ 1/3 = 8^1/3 * 3 ^1/3

= 2 * 3 ^1/3

juin [17]3 years ago

7 0

Answer:

Step-by-step explanation: because i said so

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The Italian size of a suit jacket is N centimeters, where N is the linear distance between the armpits. The American size of a s

Gekata [30.6K]

Answer:

B) 47

Step-by-step explanation:

Given:

N = linear distance between the armpits in cm

2.5P = 2N

P = (2 ÷ 2.5)N

P = 0.8N ................(1)

also,

N = P + 10,

substituting the value of P from (1) we get

N = 0.8N + 10

N - 0.8N = 10

0.2N = 10

N = 10 ÷ 0.2

N = 50

Hence

the value is closest to option (B) 47

5 0

3 years ago

PLEASE HELP! It’s easy, I just forgot how to do this stuff.

LUCKY_DIMON [66]

Answer:

Step-by-step explanation:

Graph it, or just plug in and eliminate A C and D

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3 years ago

The interior angles of △ABC measure 34°, 50°, and x°. The interior angles of △DEF measure y°, 50°, and 96°. Which statement is t

MrMuchimi

They are similar because △ABC has angle measures of 34°, 50°, and 96° and <span>△DEF has angle measures 34°, 50°, and 96°.</span>

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3 years ago

noted psychic was tested for extrasensory perception (ESP). The psychic was presented with 400 cards face down and asked to dete

adelina 88 [10]

Answer:

A sample of 11352 is needed.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is given by:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

For this problem, we have that:

400 cards, 120 cases were correct. So

$p = \frac{120}{400} = 0.3$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

How large a sample n would you need to estimate p with margin of error 0.01 and 95% confidence

We would need a sample of size n, and n is found when $M = 0.01$ . So

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.01 = 2.325\sqrt{\frac{0.3*0.7}{n}}$

$0.01\sqrt{n} = 2.325\sqrt{0.3*0.7}$

$\sqrt{n} = \frac{2.325\sqrt{0.3*0.7}}{0.01}$

$(\sqrt{n})^2 = (\frac{2.325\sqrt{0.3*0.7}}{0.01})^2$

$n = 11351.8$

Rounding up

A sample of 11352 is needed.

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3 years ago

Organize the following expressions from greatest to least by number of terms:

Aneli [31]

1 2x^2y +x^2 -3x +4
2. 3x +y +z4
3. x +2xyz3.
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3 years ago

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