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2 years ago

What is the value of x enter your answer in the box

Mathematics

2 answers:

irina [24]2 years ago

4 0

Answer:

26 degrees

Step-by-step explanation:

take 64*2 and 90*2 and add those together to get 308. Subtract that from 360 to get the total value of x plus the value of the angle across from it. these two angles will be equal so divide them by two to get your answer.

mafiozo [28]2 years ago

3 0

Answer: x=26 degrees

Step-by-step explanation: It is a 90 degree angle. 64 is already given, so you can subtract 64 from 90 to get the remaining degrees, which is x hope that made sense lol

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What number goes in the box to show the

Ratling [72]

Answer:

3 because 3 x 2 + 3 x 8 = 30 and 3(2+8)=30

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3 years ago

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konstantin123 [22]

Answer:

31.53

Step-by-step explanation:

6% of 525.50 is 31.53

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3 years ago

Identify the values of a , b , and c in the following quadratic equation.<br><br> 2 x2 + 3 x + 7 = 0

Liula [17]

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2 years ago

Read 2 more answers

119 is what percent of 170

blsea [12.9K]

70 percent of 170 is 119

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3 years ago

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You recently sent out a survey to determine if the percentage of adults who use social media has changed from 66%, which was the

il63 [147K]

Answer:

The 98% confidence interval estimate of the proportion of adults who use social media is (0.56, 0.6034).

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 $1 - \frac{\alpha}{2}$ .

Of the 2809 people who responded to survey, 1634 stated that they currently use social media.

This means that $n = 2809, \pi = \frac{1634}{2809} = 0.5817$

98% confidence level

So $\alpha = 0.02$ , z is the value of Z that has a pvalue of $1 - \frac{0.02}{2} = 0.99$ , so $Z = 2.327$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5817 - 2.327\sqrt{\frac{0.5817*4183}{2809}} = 0.56$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5817 + 2.327\sqrt{\frac{0.5817*4183}{2809}} = 0.6034$

The 98% confidence interval estimate of the proportion of adults who use social media is (0.56, 0.6034).

6 0

2 years ago