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3 years ago

3(x-4)= 36 help plz

Mathematics

2 answers:

Sladkaya [172]3 years ago

8 0

Answer: I got x = 16

Talja [164]3 years ago

6 0

Answer:

Step-by-step explanation:

3(x-4)=36

3x-12=36. 3x=48. 48÷3= 16. x=16

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In 2015 as part of the General Social Survey, 1289 randomly selected American adults responded to this question:

Radda [10]

Answer:

B (0.312, 0.364)

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 interval $1-\alpha$ , 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 $1 - \frac{\alpha}{2}$

For this problem, we have that:

1289 randomly selected American adults responded to this question. This means that $n = 1289$ .

Of the respondents, 436 replied that America is doing about the right amount. This means that $\pi = \frac{436}{1289} = 0.3382$ .

Determine a 95% confidence interval for the proportion of all the registered voters who will vote for the Republican Party. 

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

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3382 - 1.96\sqrt{\frac{0.3382*0.6618}{1289}} = 0.312$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3382 + 1.96\sqrt{\frac{0.3382*0.6618}{1289}} = 0.364$

The 95% confidence interval is:

B (0.312, 0.364)

5 0

3 years ago

28 ,81, 100, 121, 7, 9, 10, 11,

Alexxx [7]

The length is 10 and the area is 100 because 6,8,10 is a pythagorean triple. 36 + 64 = 100 and the square root of 100 is 10. 10 ^ 2 is the area which is 100. If this is right could you possibly give me brainliest? Hope this helped.

3 0

3 years ago

Read 2 more answers

What is the average of -2.6, 1.8, -3.3, -2.7, 2.2 ? I dont understand this.

olya-2409 [2.1K]

Average = Mean

To find the mean, add up the numbers and divide it by how many numbers there are.

So, $-2.6+1.8+(-3.3)+(-2.7)+2.2=-4.6$

There are 5 numbers in total.

$-4.6 \div 5=-0.92$

To do these types of division, ignore the decimal and add a 0 at the end.

So we can do:
$-460\div5=-92$

And put back the decimal.
Hope this helps :)

4 0

3 years ago

lila compro cuatro pares de pantalones azules q $32 cada uno. cuánto dinero le pago lila al empleado?

trasher [3.6K]

Answer:

128

Step-by-step explanation:

32 x 4 = 128

32 + 32 + 32 + 32 = 128

8 0

2 years ago

-1/9 + (-5/9) write in simplest form