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3 years ago

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Mai's younger brother tells her that 10/7 is equal to square root 2. Mai knows this can't be right because 10/7 is rational and

the square root of 2 is irrational. Write an explanation that Mai could use to convince her brother that 10/7 cannot be the square root of 2.

1 answer:

Elodia [21]3 years ago

7 0

The answer is 76 because Mai’s younger brother has been saving up for that long it just makes since

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yuradex [85]

Answer:

given

p=q^3

p=40

______

q=(p)^1/3

q=(40)^1/3-->q=2(5)^1/3

Now

the value of half of q , (2(5)^1/3)÷(2) ,is 5^1/3.

finally the value of p gonna be

p=q^3

p=(5^1/3) ^ 3

p=5

3 0

3 years ago

Read 2 more answers

8p+8=10+7p what is the solution set

Evgesh-ka [11]

The answer is: "p = 2" .
______________________________________________________
Explanation:
______________________________________________________
Given:
______________________________________________________
" 8p + 8 = 10 + 7p " ; Solve for "p" ;

Subtract "7p" from each side of the equation; & subtract "8" from each side of the equation; as follows:

8p + 8 − 7p − 8 = 10 + 7p − 7p <span>− 8 ;
</span>
to get:
_________________________________________
"p = 2 " ; which is our answer.
_________________________________________

8 0

4 years ago

Read 2 more answers

Forty more than the product of 2 and a number is twelve. What is the number?

posledela

Answer:

Logically, the answer is either 12 or 42

3 0

3 years ago

Researchers are studying the distribution of subscribers to a certain streaming service in different populations. From a random

Katen [24]

Answer:

$CI = (0.17 - 0.27)\± 1.65\sqrt{\frac{(0.17)*(0.83) + (0.27)*(0.73)}{200}}$

Step-by-step explanation:

Given

$n = 200$

$x_1 = 34$ -- City C

$x_2 = 54$ --- City K

Required

Determine the 90% confidence interval

This is calculated using:

$CI = \bar x \± z\frac{\sigma}{\sqrt n}$

Calculating $\bar x$

$\bar x = \bar x_1 - \bar x_2$

$\bar x = \frac{x_1}{n} - \frac{x_2}{n}$

$\bar x = \frac{34}{200} - \frac{54}{200}$

$\bar x = 0.17 - 0.27$

For a 90% confidence level, the z-score is 1.65. So:

$z = 1.65$

Calculating the standard deviation $\sigma$

$\sigma = \sqrt{(\bar x_1)*(1 - \bar x_1) + (\bar x_2)*(1 - \bar x_2) }$

So:

$\sigma = \sqrt{(0.17)*(1 - 0.17) + (0.27)*(1 - 0.27) }$

$\sigma = \sqrt{(0.17)*(0.83) + (0.27)*(0.73)}$

So:

$CI = (0.17 - 0.27)\± 1.65\frac{\sqrt{(0.17)*(0.83) + (0.27)*(0.73)}}{\sqrt {200}}$

$CI = (0.17 - 0.27)\± 1.65\sqrt{\frac{(0.17)*(0.83) + (0.27)*(0.73)}{200}}$

7 0

3 years ago

The mean for a set of 5 numbers is 24. Four of the numbers 18,30,24, and 27. What is the fifth number?

ioda

Answer:

21 it is the fifth number

5 0

3 years ago